Installation method for elevator hoisting machines

Abstract

To provide a simple and easy method for installing an elevator hoisting machine. [Solution] The method for installing the hoisting machine comprises a frame lifting step (step 4) in which the frame 24 is suspended vertically and lifted to the top of the elevator shaft 2 through the vertically extending space between the second guide rail 22 and the third guide rail 23; a frame lateral movement step (step 5) in which the lifted frame 24 is moved laterally; and a hoisting machine lifting step (step 7) in which the hoisting machine 60 is lifted to the top of the elevator shaft 2 through the same space. The hoisting machine lifting step and the hoisting machine lateral movement step may be performed first.

Description

Technical Field

[0001] The present invention relates to a method for installing a hoisting machine of an elevator installed at the top of a hoistway.

Background Art

[0002] In recent years, in a so-called machine roomless type elevator in which a hoisting machine is arranged in a hoistway, the hoisting machine may be installed at the top of the hoistway. In this case, in addition to the fact that the hoisting machine itself is a fairly heavy object, and the load applied to the hoisting machine is also quite large, a method is often adopted in which a gantry is passed over three rows of parallel guide rails (the first guide rail of the car, the second guide rail of the counterweight, and the third guide rail), and the hoisting machine is installed on the gantry (for example, Patent Documents 1 and 2).

[0003] Here, the method for installing a hoisting machine described in Patent Document 1 includes a step of attaching a guide member that slides on the first guide rail and a guide member that slides on the third guide rail to a gantry, and hoisting the gantry fixed with the hoisting machine to the top of the hoistway while guiding it along the first guide rail and the third guide rail, and a step of fixing the gantry to the guide rail.

[0004] Further, the method for installing a hoisting machine described in Patent Document 2 includes a step of attaching a guide member that slides on the second guide rail and a guide member that slides on the third guide rail to a gantry, and hoisting the gantry fixed with the hoisting machine to the top of the hoistway while guiding it along the second guide rail and the third guide rail, and a step of fixing the gantry to the guide rail.

[0005] Furthermore, the method for installing a hoisting machine described in Patent Document 2 includes the steps of: when lifting the hoisting machine and the frame separately, attaching a guide member that slides along a second guide rail and a guide member that slides along a third guide rail to the frame, and lifting the frame to the top of the elevator shaft while guiding it along the second and third guide rails; attaching a guide member that slides along a second guide rail and a guide member that slides along a third guide rail to the hoisting machine, and lifting the hoisting machine to the top of the elevator shaft while guiding it along the second and third guide rails; and fixing the frame to the guide rails and fixing the hoisting machine to the frame. [Prior art documents] [Patent Documents]

[0006] [Patent Document 1] International Publication No. 2017 / 203633 [Patent Document 2] Japanese Patent Publication No. 2018-8805 [Overview of the project] [Problems that the invention aims to solve]

[0007] However, both methods of installing hoisting machines require the installation and removal of guide components, which complicates the process.

[0008] Therefore, the present invention has been made in view of these circumstances, and aims to provide a method for installing an elevator hoisting machine that can be easily implemented. [Means for solving the problem]

[0009] The first method for installing an elevator hoisting machine according to the present invention is: A method for installing an elevator hoisting machine, wherein the first guide rail of the car, the second guide rail and third guide rail of the counterweight are installed in parallel in the direction along the wall surface in a first space extending vertically between the wall surfaces of the car and the hoistway, and the distance between the first guide rail and the second guide rail is narrower than the distance between the second guide rail and the third guide rail, and at the top of the hoistway, the height position of the upper end of the second guide rail is lower than the height position of the upper ends of the first guide rail and the third guide rail, and the support frame is installed so as to pass over the upper end of the second guide rail and straddle the first guide rail and the third guide rail, and the hoisting machine is installed on the support frame, A hoisting machine lifting process involves lifting the hoisting machine to the top of the elevator shaft through a second space extending vertically between the second guide rail and the third guide rail, The process involves moving the lifted hoisting machine laterally, The process involves lifting the frame vertically through the second space to the top of the elevator shaft, The system includes a fixing process for securing the frame to the guide rails and for securing the hoisting machine to the frame. 、 Before the initial lifting process, there is an upper rail removal process in which the uppermost guide rail of the second guide rail is removed by disconnecting it from the guide rail below it, The process includes an upper rail installation step, which involves reattaching the uppermost guide rail that was removed, either before, during, or after the fixing process, to return it to its original state. This describes the installation method for elevator hoisting machines. The second method for installing an elevator hoisting machine according to the present invention is: A method for installing an elevator hoisting machine, wherein the first guide rail of the car, the second guide rail and third guide rail of the counterweight are installed in parallel in the direction along the wall surface in a first space extending vertically between the wall surfaces of the car and the hoistway, and the distance between the first guide rail and the second guide rail is narrower than the distance between the second guide rail and the third guide rail, and at the top of the hoistway, the height position of the upper end of the second guide rail is lower than the height position of the upper ends of the first guide rail and the third guide rail, and the support frame is installed so as to pass over the upper end of the second guide rail and straddle the first guide rail and the third guide rail, and the hoisting machine is installed on the support frame, A hoisting machine lifting process involves lifting the hoisting machine to the top of the elevator shaft through a second space extending vertically between the second guide rail and the third guide rail, A lateral movement process of the hoisting machine, in which the lifted hoisting machine is moved laterally so that the degree of opening of the second space is increased, The process involves lifting the frame vertically through the second space to the top of the elevator shaft, The system includes a fixing step for securing the frame to the guide rails and for securing the hoisting machine to the frame. This describes the installation method for elevator hoisting machines. The third method for installing an elevator hoisting machine according to the present invention is: A method for installing an elevator hoisting machine, wherein the first guide rail of the car, the second guide rail and third guide rail of the counterweight are installed in parallel in the direction along the wall surface in a first space extending vertically between the wall surfaces of the car and the hoistway, and the distance between the first guide rail and the second guide rail is narrower than the distance between the second guide rail and the third guide rail, and at the top of the hoistway, the height position of the upper end of the second guide rail is lower than the height position of the upper ends of the first guide rail and the third guide rail, and the support frame is installed so as to pass over the upper end of the second guide rail and straddle the first guide rail and the third guide rail, and the hoisting machine is installed on the support frame, A hoisting machine lifting process involves lifting the hoisting machine to the top of the elevator shaft through a second space extending vertically between the second guide rail and the third guide rail, The process involves moving the lifted hoisting machine laterally, The process involves lifting the frame vertically through the second space to the top of the elevator shaft, The system includes a fixing process for securing the frame to the guide rails and for securing the hoisting machine to the frame. The fixing process is, A temporary mounting position fixing process for the mounting frame, in which the mounting frame is fixed to the guide rail at a temporary position lower in height than the regular position, The hoisting machine fixing process involves fixing the hoisting machine to a temporary mounting frame, The system includes a step of fixing the frame to the guide rail in the correct position, which involves fixing the frame on which the hoisting machine is fixed to the guide rail in the correct position. This describes the installation method for elevator hoisting machines.

[0010] No. 4 The method for installing a hoisting machine of an elevator according to the present invention is as follows. The first guide rail of the car, the second guide rail of the counterweight, and the third guide rail are installed in the first space extending in the vertical direction between the car and the wall surface of the hoistway, arranged in parallel in the direction along the wall surface, and the distance between the first guide rail and the second guide rail is narrower than the distance between the second guide rail and the third guide rail. At the top of the hoistway, the height position of the upper end of the second guide rail is lower than the height positions of the upper ends of the first guide rail and the third guide rail. The pedestal is installed so as to straddle the first guide rail and the third guide rail through above the upper end of the second guide rail, and the hoisting machine is installed on the pedestal. The method for installing a hoisting machine of an elevator is as follows. A pedestal hoisting step of hoisting the pedestal vertically and lifting it to the top of the hoistway through the second space extending in the vertical direction between the second guide rail and the third guide rail. A pedestal lateral movement step of laterally moving the hoisted pedestal. A hoisting machine hoisting step of hoisting the hoisting machine to the top of the hoistway through the second space. It includes a fixing step of fixing the pedestal to the guide rail and fixing the hoisting machine to the pedestal. 、 Before the initial lifting process, there is an upper rail removal process in which the uppermost guide rail of the second guide rail is removed by disconnecting it from the guide rail below it, The process includes an upper rail installation step, which involves reattaching the uppermost guide rail that was removed, either before, during, or after the fixing process, to return it to its original state. It is a method for installing a hoisting machine of an elevator. The fifth method for installing an elevator hoisting machine according to the present invention is: A method for installing an elevator hoisting machine, wherein the first guide rail of the car, the second guide rail and third guide rail of the counterweight are installed in parallel in the direction along the wall surface in a first space extending vertically between the wall surfaces of the car and the hoistway, and the distance between the first guide rail and the second guide rail is narrower than the distance between the second guide rail and the third guide rail, and at the top of the hoistway, the height position of the upper end of the second guide rail is lower than the height position of the upper ends of the first guide rail and the third guide rail, and the support frame is installed so as to pass over the upper end of the second guide rail and straddle the first guide rail and the third guide rail, and the hoisting machine is installed on the support frame, A lifting process for the support structure, in which the support structure is suspended vertically and lifted to the top of the elevator shaft through a second space extending vertically between the second and third guide rails, A lateral movement process of the suspended frame is performed to move it laterally so that the degree of openness of the second space is increased, The hoisting machine lifting process involves lifting the hoisting machine to the top of the elevator shaft through a second space, The system includes a fixing step for securing the frame to the guide rails and for securing the hoisting machine to the frame. This describes the installation method for elevator hoisting machines. The sixth method for installing an elevator hoisting machine according to the present invention is: A method for installing an elevator hoisting machine, wherein the first guide rail of the car, the second guide rail and third guide rail of the counterweight are installed in parallel in the direction along the wall surface in a first space extending vertically between the wall surfaces of the car and the hoistway, and the distance between the first guide rail and the second guide rail is narrower than the distance between the second guide rail and the third guide rail, and at the top of the hoistway, the height position of the upper end of the second guide rail is lower than the height position of the upper ends of the first guide rail and the third guide rail, and the support frame is installed so as to pass over the upper end of the second guide rail and straddle the first guide rail and the third guide rail, and the hoisting machine is installed on the support frame, A lifting process for the support structure, in which the support structure is suspended vertically and lifted to the top of the elevator shaft through a second space extending vertically between the second and third guide rails, The process involves moving the suspended frame horizontally, The hoisting machine lifting process involves lifting the hoisting machine to the top of the elevator shaft through a second space, The system includes a fixing process for securing the frame to the guide rails and for securing the hoisting machine to the frame. The fixing process is, A temporary mounting position fixing process for the mounting frame, in which the mounting frame is fixed to the guide rail at a temporary position lower in height than the regular position, The hoisting machine fixing process involves fixing the hoisting machine to a temporary mounting frame, The system includes a step of fixing the frame to the guide rail in the correct position, which involves fixing the frame on which the hoisting machine is fixed to the guide rail in the correct position. This describes the installation method for elevator hoisting machines.

[0011] The 4th to 6th As one embodiment of the method for installing an elevator hoisting machine according to the present invention, Before the fixing process, the hoisting machine that was lifted up To increase the degree of openness of the second space The hoisting machine is equipped with a lateral movement process for horizontal movement. This configuration can be adopted.

[0013] First and 4 As one embodiment of the method for installing an elevator hoisting machine according to the present invention, A shorter guide rail is used as the uppermost guide rail. This configuration can be adopted.

[0014] 1 ~6th As one embodiment of the method for installing an elevator hoisting machine according to the present invention, The lateral movement process includes a switching process in which the hoisting machine or frame is switched from the lifting machine used in the lifting process to another lifting machine whose vertical center of lifting is located closer to the first guide rail than the vertical center of lifting machine used in the lifting process. This configuration can be adopted.

[0015] 1 ~6th As one embodiment of the method for installing an elevator hoisting machine according to the present invention, As an alternative lifting system, two lifting machines are used, positioned at a predetermined distance along the wall of the hoistway to perform two-point lifting. This configuration can be adopted. [Effects of the Invention]

[0017] According to the elevator hoisting machine installation method of the present invention, the hoisting machine and the frame for the hoisting machine are not guided by guide members onto guide rails, but are lifted in two parts (with the frame suspended vertically) by utilizing the second space extending vertically between the second and third guide rails. Therefore, according to the elevator hoisting machine installation method of the present invention, there is no need for the installation and removal of guide members, and the installation can be carried out simply. [Brief explanation of the drawing]

[0018] [Figure 1] Figure 1 is a partial cross-sectional plan view of the elevator at the top of the hoistway. [Figure 2] Figure 2 is a front view of the area surrounding the elevator hoisting machine at the top of the hoistway. [Figure 3] Figure 3 is an explanatory diagram of a lifting jig that is attached to a hoisting machine. [Figure 4] Figures 4(a) to 4(d) are explanatory diagrams of the installation method of the hoisting machine according to Embodiment 1. [Figure 5] Figures 5(a) to 5(d) are explanatory diagrams that continue from Figure 4. [Figure 6] Figures 6(a) to 6(d) are explanatory diagrams that continue from Figure 5. [Figure 7] Figures 7(a) to 7(c) are explanatory diagrams that continue from Figure 6. [Figure 8] Figures 8(a) to 8(d) are explanatory diagrams of the installation method of the hoisting machine according to Embodiment 2. [Figure 9] Figures 9(a) to 9(d) are explanatory diagrams that continue from Figure 8. [Figure 10] Figures 10(a) to 10(d) are explanatory diagrams that continue from Figure 9. [Figure 11] Figures 11(a) and (b) are explanatory diagrams that continue from Figure 10. [Figure 12] Figures 12(a) to 12(d) are explanatory diagrams of the installation method of the hoisting machine according to Embodiment 3. [Figure 13] Figures 13(a) to 13(d) are explanatory diagrams that continue from Figure 12. [Figure 14] Figures 14(a) to 14(d) are explanatory diagrams that continue from Figure 13. [Figure 15] Figures 15(a) to 15(d) are explanatory diagrams that continue from Figure 14. [Figure 16] Figures 16(a) to 16(c) are explanatory diagrams illustrating each example of the lateral movement process of the frame shown in Figure 13(b). [Figure 17] Figures 17(a) to 17(d) are explanatory diagrams illustrating an example of the temporary position fixing process for the frame shown in Figure 6(b). [Figure 18] Figures 18(a) to 18(d) are explanatory diagrams illustrating another example of the temporary position fixing process for the frame shown in Figure 6(b). [Modes for carrying out the invention]

[0019] The following describes the installation method of the elevator hoisting machine according to each embodiment, but first, the overall configuration of the elevator will be described.

[0020] As shown in Figure 1, the elevator 1 comprises a hoistway 2, a car 5, and a drive unit 6 for the car 5. The hoistway 2 extends vertically within a building with multiple floors. The car 5 moves up and down within the hoistway 2 by the drive unit 6, and stops at a designated floor when the drive unit 6 is stopped.

[0021] The elevator car 5 is equipped with guide bodies (not shown) such as guide shoes and roller guides at four locations: top, bottom, left, and right. Two rows of guide rails 20 and 21 extending vertically are installed on both sides of the elevator car 5 within the hoistway 2, allowing the elevator car 5 to move up and down within the hoistway 2 while being guided by the two rows of guide rails 20 and 21 with its four guide bodies.

[0022] The drive unit 6 comprises a hoisting machine 60, a counterweight 61, a main rope (not shown), and various sheaves (not shown). The hoisting machine 60 is installed at the top of the hoistway 2. The counterweight 61 is positioned in the vertically extending space between the side of the car 5 (the side when the side with the car door is considered the front) and the wall of the hoistway 2 (hereinafter referred to as the "first space"), and moves up and down within the hoistway 2. Two rows of guide rails 22 and 23 extending vertically are installed on both sides of the counterweight 61 in the first space, allowing the counterweight 61 to move up and down within the hoistway 2 while being guided by the two rows of guide rails 22 and 23. The main rope is wound around the drive sheave of the hoisting machine 60 and various sheaves. When the hoisting machine 60 is driven, the main rope travels, and consequently, the car 5 moves up and down within the hoistway 2. Similarly, as the main rope moves, the counterweight 61 moves up and down within the elevator shaft 2.

[0023] As shown in Figure 2, the guide rails 21 of one row of the elevator car 5 (hereinafter referred to as the "first guide rail"), the guide rails 22 of one row of the counterweight 61 (hereinafter referred to as the "second guide rail"), and the guide rails 23 of the other row (hereinafter referred to as the "third guide rail") are installed in the following manner: i) in the first space, they are installed in parallel in the direction along the wall surface of the elevator shaft 2 (hereinafter referred to as the "first horizontal direction"), ii) the distance between the first guide rail 21 and the second guide rail 22 is narrower than the distance between the second guide rail 22 and the third guide rail 23 (in other words, the second guide rail 22 is positioned closer to the first guide rail 21), and iii) at the top of the elevator shaft 2, the height position of the upper end of the second guide rail 22 is lower than the height position of the upper ends of the first guide rail 21 and the third guide rail 23.

[0024] Furthermore, the guide rails 21-23 in each row are extended vertically by connecting the ends of two guide rails of appropriate lengths. However, the uppermost guide rail 22A of the second guide rail 22 is shorter than the other guide rails (which are 2m or longer (for example, 2.5m)), being less than 1.5m in length (for example, 1m).

[0025] The frame 24 of the hoisting machine 60 is installed so as to pass over the upper end of the second guide rail 22 and straddle the first guide rail 21 and the third guide rail 23. The frame 24 is installed in the first space along the first horizontal direction and is installed in a regular position at a predetermined distance below the ceiling surface at the top of the elevator shaft 2. The frame 24 is a long body that is longer than the distance between the second guide rail 22 and the third guide rail 23 and has a length that spans the first guide rail 21 and the third guide rail 23, and is also called a machine beam. The frame 24 is a metal beam such as iron or steel. In the regular position, both ends of the frame 24 are fixed to intermediate points on the first guide rail 21 and the third guide rail 23 via appropriate fixing means such as brackets, clamps, fasteners, etc., and the middle part of the frame 24 is fixed to the upper end of the second guide rail 22 (the uppermost guide rail 22A) via similar fixing means. The upper end of the second guide rail 22 (the uppermost guide rail 22A) abuts against the frame 24 from below, supporting the load of the frame 24 from below.

[0026] The hoisting machine 60 is installed on the frame 24 (with vibration-damping rubber in between if necessary). In the first space, the hoisting machine 60 is installed so that the drive shaft is aligned in a direction perpendicular to the wall surface of the elevator shaft 2 (hereinafter referred to as the "second horizontal direction" perpendicular to the first horizontal direction). The hoisting machine 60 has a thin shape in which the left-right direction perpendicular to the drive axis direction is the width and the drive axis direction is the thickness, with the thickness being smaller than the width. The hoisting machine 60 has a symmetrical shape with respect to a vertical line passing through the center of gravity. The hoisting machine 60 has a width narrower than the distance between the second guide rail 22 and the third guide rail 23.

[0027] The hoisting machine 60 is supported by the frame 24 at its lower end, but if swaying at the upper end becomes a problem, a sway stabilizer 25 is used. The sway stabilizer 25 is installed above the hoisting machine 60 so as to straddle the first guide rail 21 and the third guide rail 23, and is fixed to the upper part of the hoisting machine 60 at its middle section.

[0028] <Installation method of the hoisting machine 60 according to Embodiment 1> The installation method for the hoisting machine 60 according to Embodiment 1 begins with the guide rails 21, 22, and 23 already installed (see Figure 4(a)). This is also true for the installation methods for the hoisting machine 60 according to Embodiments 2 and 3, which will be described later. Therefore, we will first explain how to install these guide rails 21, 22, and 23.

[0029] (Installation process for the first guide rail) The worker or equipment (hereinafter simply referred to as "worker") adjusts the horizontal position and angle of the rail bracket fixed to the first guide rail relative to the wall bracket already attached to the wall surface of the elevator shaft 2 at the lowest point (pit) of the elevator shaft 2, thereby centering the rail bracket in the horizontal plane relative to the first guide rail. After the centering is complete, the rail bracket is fixed to the wall bracket (final fixing).

[0030] (Connection process) The worker uses a lifting machine to suspend the second guide rail, places it on top of the first guide rail, and connects both ends of the two guide rails using connecting materials such as connecting plates. At this time, the worker uses a gauge to ensure that the two guide rails are perfectly straight.

[0031] (Installation process for the second guide rail) The worker temporarily attaches the rail bracket, which will be fixed to the second guide rail, to the wall bracket that is already attached to the wall surface of the elevator shaft 2.

[0032] (Connection process) The worker uses a lifting machine to suspend the third guide rail, places it on top of the second guide rail, and connects both ends of the two guide rails using connecting materials such as connecting plates. At this time, the worker also uses a gauge to ensure that the two guide rails are perfectly straight.

[0033] The workers repeat these steps, connecting the guide rails sequentially upwards until they are installed at the top of the elevator shaft 2.

[0034] (Centering and final fixing process) At this point, the horizontal position and angle of the second and subsequent guide rails have not yet been aligned, and the rail brackets that will be fixed to the second and subsequent guide rails have not yet been permanently fixed to the wall brackets. Therefore, the worker will perform these tasks.

[0035] As mentioned above, the uppermost guide rail 22A of the second guide rail 22 is shorter than the other guide rails, and the counterweight 61 does not rise to this height. For this reason, guide rail 22A is not fixed via wall brackets and rail brackets, but is only connected to and fixed to the guide rail below it. Therefore, centering of guide rail 22A is only required to align it with the straightness of the guide rail below it.

[0036] The installation method of the hoisting machine 60 according to Embodiment 1 is as shown in Figures 4 to 7. (Step 1) Support mounting process (Step 2) Lifting machine installation process (Step 3) Removal of the top rail (Process 4) Hoisting machine lifting process (Process 5) Lateral movement of the hoisting machine (Step 6) Lifting machine installation process (Process 7) Lifting process of the frame (Step 8) Temporary position fixing process for the frame (Process 9) Hoisting machine fixing process (Step 10) Fixing the frame to its correct position (Step 11) Installation of the top rail (Step 12) Installation of anti-vibration device It is equipped with.

[0037] (Support mounting process (step 1)) As shown in Figure 4(b), the worker attaches the support 70 to a predetermined structure at the top of the guide rail or elevator shaft 2. The support 70 is for supporting (suspending) the lifting machine and is installed so as to straddle the first guide rail 21 and the third guide rail 23. The support 70 is a long body having a length that spans the first guide rail 21 and the third guide rail 23, and is also called a lifting beam. The support 70 is a metal beam such as iron or steel. Both ends of the support 70 are fixed to the upper ends of the first guide rail 21 and the third guide rail 23 via appropriate fixing means such as brackets, clamps, fasteners, and other fasteners.

[0038] (Lifting equipment installation process (process 2)) As shown in Figure 4(c), the worker attaches the lifting machine 71 for the hoisting machine 60 to the support 70. The lifting machine 71 is either an electric or manual lifting machine, and commercially available products are used. Electric lifting machines include hoists, winches, cranes, and chain blocks. Manual lifting machines include chain blocks, lever blocks (registered trademark), and Tirfors. The lifting machine 71 is not limited to one of these and can be any appropriate type (the same applies to lifting machines 72 to 74 described later). However, considering that the hoisting machine 60 is a considerably heavy object and will be lifted over a long height, an electric chain block with a rated load of 480 kg or more is used as the lifting machine 71.

[0039] The lifting machine 71 is attached to the support 70 such that the center of gravity vertical line (the vertical line through which the center of gravity of the lifted object passes when raising or lowering the lifted object) coincides with the midpoint line between the second guide rail 22 and the third guide rail 23. Note that "coincidence" includes not only the exact same thing, but also the concept of "approximately" meaning something close or similar.

[0040] (Removal of the top rail (Step 3)) As shown in Figure 4(d), the worker removes the uppermost guide rail 22A of the second guide rail 22 by disconnecting it from the guide rail below it. The removal of the guide rail 22A is performed, for example, using a lifting machine 71. Alternatively, since the guide rail 22A is relatively light, the worker may hold the guide rail 22A without using a lifting machine 71. By removing the guide rail 22A, the height position of the upper end of the second guide rail 22 is lowered, and the space between the first guide rail 21 and the third guide rail 23 where the second guide rail 22 is absent (hereinafter referred to as the "third space") is expanded downwards compared to when the guide rail 22A is installed.

[0041] (Hoisting machine lifting process (process 4)) As shown in Figure 5(a), the worker uses the lifting machine 71 to hoist the hoisting machine 60 through the vertically extending space between the second guide rail 22 and the third guide rail 23 (hereinafter referred to as the "second space") to the top of the elevator shaft 2 (the space in the second space that overlaps with the third space (hereinafter referred to as the "fourth space")). The hoisting machine 60 is brought into the elevator shaft 2 from the landing entrance of a designated floor such as the lowest floor or the first floor, and then lifted up by the lifting machine 71.

[0042] In this case, since the width of the hoisting machine 60 is narrower than the distance between the second guide rail 22 and the third guide rail 23, and the vertical line of the lifting center of the lifting machine 71 coincides with the midline between the second guide rail 22 and the third guide rail 23, the hoisting machine 60 always maintains a separation between itself and the second guide rail 22 and the third guide rail 23 while moving upward in the second space by the lifting operation, and does not come into contact with the second guide rail 22 and the third guide rail 23 (if necessary, an operator can assist by riding in a gondola and moving upward together). Therefore, it is possible to prevent problems such as the hoisting machine 60 rubbing against the guide rails 22 and 23 and causing scratches on the hoisting machine 60 and the guide surfaces of the guide rails 22 and 23.

[0043] (Woven machine lateral movement process (process 5)) As shown in Figures 5(b) and (c), the worker moves the hoisting machine 60, which has been lifted to the fourth space, laterally toward the first guide rail 21. Specifically, the hoisting machine lateral movement process comprises a lifting machine installation process and a hoisting machine replacement process. In the lifting machine installation process, the worker attaches the lifting machine 72 to the support 70, and in the hoisting machine replacement process, the worker replaces the hoisting machine 60 from lifting machine 71 to lifting machine 72. As an example, the lifting machines 72 are two manually operated chain blocks arranged at a predetermined distance apart in the first horizontal direction. The two lifting machines 72 are attached to the support 70 such that the vertical line of the lifting center is positioned (shifted) toward the first guide rail 21 than the vertical line of the lifting center of lifting machine 71. As a result, the hoisting machine 60 moves laterally toward the first guide rail 21 in a force equilibrium relationship. As a result, the hoisting machine 60 moves laterally from the fourth space towards the third space outside the fourth space, increasing the degree of opening of the fourth space.

[0044] When switching to the lifting machine 72, the hook of the lifting machine 72 is attached to the suspension hole 75a of the lifting jig 75, as shown in Figure 3. The lifting jig 75 can be attached detachably by aligning the through hole 75b with the suspension hole 60a formed in the leg of the hoisting machine 60 and inserting a pin (not shown) into them. Since the suspension hole 75a is located higher than the suspension hole 60a and higher than the center of gravity of the hoisting machine 60, the hoisting machine 60 can be suspended in a stable position by using the lifting jig 75.

[0045] (Lifting equipment installation process (process 6)) As shown in Figure 5(d), the worker attaches the lifting machine 73 for the frame 24 to the support 70. Since the frame 24 is lighter than the hoisting machine 60, an electric chain hoist with a rated load of 240 kg or more is used as the lifting machine 73.

[0046] The lifting machine 73 is attached to the support 70 such that the vertical line of the suspension center is located between the second guide rail 22 and the third guide rail 23 (preferably located close to the midpoint line, more preferably coinciding with the midpoint line).

[0047] (Lifting process for the support structure (process 7)) As shown in Figure 6(a), the worker uses the lifting machine 73 to suspend the frame 24 vertically and lifts it through the second space to the top of the elevator shaft 2 (up to the fourth space). The frame 24, like the hoisting machine 60, is brought into the elevator shaft 2 from the landing entrance on the lowest floor or a designated floor such as the first floor, and then lifted up by the lifting machine 73.

[0048] At this time, the frame 24 is suspended vertically, and the vertical line of the suspension center of the lifting machine 73 is located between the second guide rail 22 and the third guide rail 23. Therefore, while the frame 24 moves upward in the second space due to the lifting operation, it always maintains a separation between itself and the second guide rail 22 and the third guide rail 23, respectively, and does not come into contact with the second guide rail 22 and the third guide rail 23 (if necessary, a worker can assist by riding in a gondola and moving upward together). As a result, it is possible to prevent problems such as the frame 24 rubbing against the guide rails 22 and 23 and scratching the guide surfaces of the frame 24 and the guide rails 22 and 23.

[0049] (Temporary position fixing process for the support structure (Process 8)) As shown in Figures 6(b) and (c), the worker fixes the frame 24, which has been lifted up to the fourth space (since the frame 24 is suspended vertically, the entire frame 24, including its lower part, may not necessarily reach the fourth space), to the first guide rail 21 and the third guide rail 23 in a temporary position. The temporary position refers to the height position where the frame 24 rests on the upper end of the second guide rail 22 with the uppermost guide rail 22A removed, and the upper end of the second guide rail 22 with the uppermost guide rail 22A removed contacts the frame 24 from below.

[0050] (Hoisting machine fixing process (process 9)) As shown in Figure 6(d), the worker loosens the lifting machine 72, lowers the hoisting machine 60 to a high position on the frame 24, and then fixes it to the frame 24. In this example, the hoisting machine 60 is fixed above the second guide rail 22 and close to the first guide rail 21. The reason for providing a temporary frame position fixing step prior to the hoisting machine fixing step is that it is necessary to stabilize the frame 24 when fixing the hoisting machine 60.

[0051] (Step 10: Fixing the mounting frame to its correct position) As shown in Figure 7(a), the worker uses the lifting machine 72 to hoist the hoisting machine 60, which is integrated with the frame 24, and fixes the frame 24 to the first guide rail 21 and the third guide rail 23 in the correct position.

[0052] (Upper rail installation process (step 11)) As shown in Figure 7(b), the worker reattaches the uppermost guide rail 22A of the second guide rail 22, which had been removed, to return it to its original state. The lower end of guide rail 22A is connected to the upper end of the guide rail below it via a connecting material such as a cover plate. The upper end of guide rail 22A is fixed to the underside of the middle section of the frame 24 via appropriate fixing means such as brackets, clamps, fasteners, and other fasteners. At this time, the worker uses a gauge to center the straightness of guide rail 22A and the guide rail below it.

[0053] (Stabilizer installation process (step 12)) As shown in Figure 7(c), the worker removes the lifting machine 72 and the lifting jig 75, and installs the brace 25. With these steps completed, the installation of the hoisting machine 60 is finished.

[0054] <Installation method of the hoisting machine 60 according to Embodiment 2> The installation method for the hoisting machine 60 according to Embodiment 2 is as shown in Figures 8 to 11. (Step 1) Support mounting process (Step 2) Lifting machine installation process (Step 3) Removal of the top rail (Process 4) Hoisting machine lifting process (Process 5) Lateral movement of the hoisting machine (Step 6) Lifting machine installation process (Process 7) Lifting process of the frame (Step 8) Fixing the frame to its correct position Step (Step 9) Installation of the top rail (Process 10) Hoisting machine fixing process (Step 11) Installation of anti-vibration device It is equipped with the following. In the following, we will mainly describe the differences from the installation method of the hoisting machine 60 according to Embodiment 1, and will omit descriptions of the same points, as they are the same as described above.

[0055] (Woven machine lateral movement process (process 5)) As shown in Figures 9(b) and (c), the operator moves the hoisting machine 60 laterally toward the first guide rail 21 and lifts it as high as possible. This height is higher than the height of the support frame 24 when it is in its normal position. This eliminates the need for the temporary position fixing process of the support frame, and allows the process of fixing the support frame to its normal position to proceed immediately.

[0056] (Step 8: Fixing the mounting frame to its correct position) As shown in Figures 10(b) and (c), the worker uses the lifting machine 73 (and other lifting machines as needed) to hoist the frame 24 to directly below the hoisting machine 60, and then fixes the frame 24 to the first guide rail 21 and the third guide rail 23 in the correct position.

[0057] <Installation method of the hoisting machine 60 according to Embodiment 3> The installation method of the hoisting machine 60 according to Embodiment 3 is as shown in Figures 12 to 15. (Step 1) Support mounting process (Step 2) Lifting machine installation process (Step 3) Removal of the top rail (Process 4) Lifting process of the frame (Process 5) Lateral movement of the frame (Step 6) Lifting machine installation process (Process 7) Hoisting machine lifting process (Process 8) Lateral movement of the hoisting machine (Step 9) Temporary position fixing process for the frame (Process 10) Hoisting machine fixing process (Step 11) Fixing the frame to its correct position (Step 12) Installation of the top rail (Step 13) Installation of anti-vibration device It is equipped with the following. In the following, we will mainly describe the differences from the installation method of the hoisting machine 60 according to Embodiment 1, and will omit descriptions of the same points, as they are the same as described above.

[0058] (Support mounting process (step 1)) As shown in Figure 12(b), the worker attaches the support members 70A and 70B to the guide rails. The support members 70A and 70B are divided into two parts: support member 70A is attached to the third guide rail 23, and support member 70B is attached to the first guide rail 21. The support members 70A and 70B are fixed to the upper ends of the third guide rail 23 and the first guide rail 21 via appropriate fixing means such as brackets, clamps, fasteners, and other fasteners. In principle, the support members 70A and 70B are not removed after the hoisting machine 60 is installed, as they may be used for adjustment and maintenance work after installation, such as removing the brake of the hoisting machine 60 due to a malfunction or replacing the hoisting machine 60 itself.

[0059] The support 70A has a first portion extending toward the first guide rail 21. The first portion has at least three suspension holes along a first horizontal direction. In order from the third guide rail 23 toward the first guide rail 21, the first suspension hole is for hanging a lifting machine 73 for the frame 24. The second suspension hole is for hanging a lifting machine 72 for the lateral movement of the hoisting machine 60. The third suspension hole is located on the extension of the midline between the second guide rail 22 and the third guide rail 23 and is for hanging a lifting machine 71 for the hoisting machine 60.

[0060] The support 70B has a first portion extending toward the third guide rail 23 and a second portion extending toward the opposite side of the first portion. The first portion has at least one suspension hole. This suspension hole is for hanging a lifting machine 72 for the lateral movement of the hoisting machine 60.

[0061] It goes without saying that supports 70A and 70B can be used in the support mounting process of Embodiments 1 and 2. Alternatively, it goes without saying that support 70 used in the support mounting process of Embodiments 1 and 2 can be used in the support mounting process of Embodiment 3.

[0062] (Lifting process for the support structure (process 4)) As shown in Figure 13(a), the worker first lifts the frame 24.

[0063] (Lateral movement of the support structure (Step 5)) As shown in Figure 13(b), the worker moves the suspended frame 24 laterally to the side of the third guide rail 23. Specifically, the worker moves the suspended frame 24 out from between the second guide rail 22 and the third guide rail 23, to the side of the third guide rail 23, and secures it to the third guide rail 23 using wire or the like to prevent it from moving unintentionally from that position. Note that the location where the frame 24 is moved laterally is not limited to the side of the third guide rail 23, as shown by the solid line in Figure 16(a), but may also be on the opposite side of the third guide rail 23 (between the wall of the elevator shaft and the third guide rail 23), as shown by the dashed line (two-dot chain line). Alternatively, as shown in Figure 16(b), if there is sufficient space between the second guide rail 22 and the third guide rail 23, it may be between the second guide rail 22 and the third guide rail 23 and in the vicinity of the third guide rail 23. Alternatively, as shown in Figure 16(c), the space may be between the first guide rail 21 and the second guide rail 22.

[0064] (Hoisting machine lifting process (process 7)) The worker then lifts the hoisting machine 60, as shown in Figure 13(d).

[0065] <Effects of the installation method of the hoisting machine 60 according to each embodiment> According to the installation method of the hoisting machine 60 in Embodiments 1 to 3, the hoisting machine 60 and the frame 24 are not guided by guide members onto guide rails, but rather lifted in two separate parts (with the frame 24 suspended vertically) by utilizing the second space extending vertically between the second guide rail 22 and the third guide rail 23. Therefore, according to the installation method of the hoisting machine 60 in Embodiments 1 to 3, there is no need for the installation and removal of guide members, and the installation can be carried out simply.

[0066] Furthermore, according to the installation method of the hoisting machine 60 in Embodiments 1 to 3, after the first object to be lifted is lifted through the second space to the fourth space, it is moved laterally to increase the opening of the fourth space, and then the next object to be lifted is lifted through the second space to the fourth space. Therefore, according to the installation method of the hoisting machine 60 in Embodiments 1 to 3, it is possible to prevent problems such as two objects to be lifted coming into contact, interfering with each other, or colliding.

[0067] According to the installation method of the hoisting machine 60 in Embodiments 1 to 3, before lifting the object to be hoisted, the uppermost guide rail 22A of the second guide rail 22 is removed to expand the third space downwards. Therefore, according to the installation method of the hoisting machine 60 in Embodiments 1 to 3, the lifted object can be moved smoothly laterally without the second guide rail 22 getting in the way.

[0068] In the installation method of the hoisting machine 60 according to Embodiments 1 to 3, a shorter guide rail is used as the uppermost guide rail 22A than the other guide rails. Therefore, in the installation method of the hoisting machine 60 according to Embodiments 1 to 3, the uppermost rail removal process and the uppermost rail installation process can be performed easily, and the centering process in the uppermost rail installation process can be easily completed.

[0069] In the installation method of the hoisting machine 60 according to Embodiments 1 to 3, a hoisting machine replacement step is provided in the lateral movement step of the hoisting machine, in which the hoisting machine 60 is replaced from the lifting machine 71 used in the lifting step to another lifting machine 72 whose vertical center of suspension is located closer to the first guide rail 21 than the vertical center of suspension of lifting machine 71. Furthermore, in the installation method of the hoisting machine 60 according to Embodiment 3, a frame replacement step may be provided in the lateral movement step of the frame, in which the frame 24 is replaced from the lifting machine 73 used in the lifting step to another lifting machine whose vertical center of suspension is located closer to the first guide rail 21 than the vertical center of suspension of lifting machine 73. As a result, the hoisting machine 60 installation method according to Embodiments 1 to 3 allows for smooth lateral movement of the lifted object.

[0070] According to the installation method of the hoisting machine 60 in Embodiments 1 to 3, two lifting machines 72 are used as separate lifting machines, which are arranged at a predetermined distance in the first horizontal direction and perform two-point lifting. Therefore, according to the installation method of the hoisting machine 60 in Embodiments 1 to 3, the hoisting machine 60 can be moved laterally stably without shaking.

[0071] According to the installation method of the hoisting machine 60 in Embodiments 1 to 3, the fixing process includes a temporary base fixing step in which the base 24 is fixed to the first guide rail 21 and the third guide rail 23 at a temporary position lower than the normal position, a hoisting machine fixing step in which the hoisting machine 60 is fixed to the base 24 at the temporary position, and a normal base fixing step in which the base 24 to which the hoisting machine 60 is fixed is fixed to the first guide rail 21 and the third guide rail 23 at the normal position. Therefore, according to the installation method of the hoisting machine 60 in Embodiments 1 to 3, the hoisting machine 60 can be smoothly installed even if the ceiling height of the elevator shaft 2 is not sufficient.

[0072] <Other Embodiments> It should be noted that the present invention is not limited to the embodiments described above, and various modifications are possible without departing from the spirit of the invention.

[0073] In embodiments 1 to 3 described above, the uppermost guide rail 22A of the second guide rail 22 is removed before lifting the object to be hoisted, thereby expanding the third space downwards. However, the present invention is not limited thereto. If the uppermost guide rail 22A does not get in the way when moving the hoisted object laterally (i.e., there is sufficient lifting space), the uppermost rail removal step and the uppermost rail installation step do not need to be provided.

[0074] In embodiments 1 to 3 described above, a lifting machine 71 for the hoisting machine 60 and a lifting machine 73 for the frame 24 are used separately, so two lifting machine installation processes are provided. However, the present invention is not limited thereto. A single lifting machine can be used for both the hoisting machine and the frame, and the lifting machine installation process can be consolidated into one.

[0075] In embodiments 1 to 3 described above, two-point lifting is performed using two lifting machines during the lateral movement process of the hoisting machine. However, the present invention is not limited thereto. One-point lifting may also be performed using one lifting machine during the lateral movement of the hoisting machine. Of course, even in this case, the lifting machine used for one-point lifting is attached to the support such that the vertical line of the lifting center is located on the first guide rail side than the vertical line of the lifting center of the lifting machine for the hoisting machine.

[0076] In embodiments 1 to 3 described above, the hoisting machine 60 has a width narrower than the distance between the second guide rail 22 and the third guide rail 23, so that in the hoisting machine lifting process, the drive shaft is lifted while maintaining an orientation along the direction perpendicular to the wall surface of the elevator shaft 2 (second horizontal direction). However, the present invention is not limited thereto. In the case of a hoisting machine having a width wider than the distance between the second guide rail and the third guide rail, the hoisting machine may be tilted in a plan view in the second space to narrow its width in a front view and lift it.

[0077] In embodiments 1 to 3 described above, the hoisting machine 60 moves laterally in the first horizontal direction during the hoisting machine lateral movement process, and then is lowered downwards and fixed in the hoisting machine fixing process. That is, the position of the hoisting machine 60 in the first horizontal direction after the hoisting machine lateral movement process and the position of the hoisting machine 60 installed on the frame 24 in the first horizontal direction are the same or substantially the same. However, the present invention is not limited thereto. The two positions may be offset in the first horizontal direction.

[0078] In embodiments 1 to 3 described above, the support frame 24 is fixed at both ends to intermediate points on the first guide rail 21 and the third guide rail 23, and at the middle section to the upper end of the second guide rail 22. However, the present invention is not limited thereto. The middle section of the support frame does not need to be fixed; it may simply rest on the upper end of the second guide rail 22.

[0079] In Embodiment 3 described above, a hoisting machine lateral movement step is provided. However, the present invention is not limited thereto. In the hoisting machine lifting step, the hoisting machine fixing step may be performed from the state in which the hoisting machine has been lifted to the fourth space without providing a hoisting machine lateral movement step. Alternatively, even if a hoisting machine lateral movement step is provided, the hoisting machine 60 may be moved laterally in a direction other than the first guide rail 21 side. The same applies to Embodiments 1 and 2 described above, in which the hoisting machine 60 may be moved laterally in a direction other than the first guide rail 21 side.

[0080] In the embodiments 1 and 2 described above, as shown in Figure 17, in the frame lifting process (step 7), the frame 24 is lifted with the end of the frame 24 that is fixed to the third guide rail 23 (second end) facing upwards and the end of the frame 24 that is fixed to the first guide rail 21 (first end) facing downwards. In the temporary frame fixing process (step 8), the first end is lifted by the lifting machine 74, and the frame 24 is pulled horizontally by the lifting machine 74. However, the present invention is not limited thereto. As shown in Figure 18, in the frame lifting process (step 7), the frame 24 may be lifted with the first end facing upwards and the second end facing downwards, and the first end reaching the upper end of the second guide rail 22. In the frame temporary position fixing process (step 8), the first end is lifted by the lifting machine 74, the lifting machine 73 is moved to the second end side, and the frame 24 is pulled horizontally by the lifting machine 74. The same applies to Embodiment 3 described above.

[0081] Unless there is physical interference, it is naturally possible to apply the technical elements described above to other embodiments or examples, to substitute the technical elements described above with technical elements relating to other embodiments or examples, and to combine the technical elements described above, and this is naturally intended by the present invention. For example, when lifting the hoisting machine of Embodiment 3 at the rear, if the ceiling height is sufficient, the same method as in Embodiment 2 (a method of immediately performing the frame position fixing process) can be adopted instead of the same method as in Embodiment 1 (a method of providing a temporary frame position fixing process). [Explanation of Symbols]

[0082] 1...Elevator, 2...Hoistway, 20...Guide rail, 21...Guide rail (1st guide rail), 22...Guide rail (2nd guide rail), 22A...Uppermost guide rail, 23...Guide rail (3rd guide rail), 24...Frame, 25...Sway brace, 5...Cage, 6...Drive unit, 60...Hoisting machine, 60a...Hanging hole, 61...Counterweight, 70, 70A, 70B...Support, 71~74...Lifting machine, 75...Hanging jig, 75a...Hanging hole, 75b...Through hole

Claims

1. A method for installing an elevator hoisting machine, wherein the first guide rail of the car, the second guide rail and third guide rail of the counterweight are installed in parallel in the direction along the wall surface in a first space extending vertically between the wall surfaces of the car and the hoistway, and the distance between the first guide rail and the second guide rail is narrower than the distance between the second guide rail and the third guide rail, and at the top of the hoistway, the height position of the upper end of the second guide rail is lower than the height position of the upper ends of the first guide rail and the third guide rail, and the support frame is installed so as to pass over the upper end of the second guide rail and straddle the first guide rail and the third guide rail, and the hoisting machine is installed on the support frame, A hoisting machine lifting process involves lifting the hoisting machine to the top of the elevator shaft through a second space extending vertically between the second guide rail and the third guide rail, The process involves moving the lifted hoisting machine laterally, The process involves lifting the frame vertically through the second space to the top of the elevator shaft, The system includes a fixing process for securing the frame to the guide rails and for securing the hoisting machine to the frame. Before the initial lifting process, there is an upper rail removal process in which the uppermost guide rail of the second guide rail is removed by disconnecting it from the guide rail below it, The process includes an upper rail installation step, which involves reattaching the uppermost guide rail that was removed, either before, during, or after the fixing process, to return it to its original state. Installation method for elevator hoisting machines.

2. A method for installing an elevator hoisting machine, wherein the first guide rail of the car, the second guide rail and third guide rail of the counterweight are installed in parallel in the direction along the wall surface in a first space extending vertically between the wall surfaces of the car and the hoistway, and the distance between the first guide rail and the second guide rail is narrower than the distance between the second guide rail and the third guide rail, and at the top of the hoistway, the height position of the upper end of the second guide rail is lower than the height position of the upper ends of the first guide rail and the third guide rail, and the support frame is installed so as to pass over the upper end of the second guide rail and straddle the first guide rail and the third guide rail, and the hoisting machine is installed on the support frame, A hoisting machine lifting process involves lifting the hoisting machine to the top of the elevator shaft through a second space extending vertically between the second guide rail and the third guide rail, A lateral movement process of the hoisting machine, in which the lifted hoisting machine is moved laterally so that the degree of opening of the second space is increased, The process involves lifting the frame vertically through the second space to the top of the elevator shaft, The system includes a fixing step for securing the frame to the guide rails and for securing the hoisting machine to the frame. Installation method for elevator hoisting machines.

3. A method for installing an elevator hoisting machine, wherein the first guide rail of the car, the second guide rail and third guide rail of the counterweight are installed in parallel in the direction along the wall surface in a first space extending vertically between the wall surfaces of the car and the hoistway, and the distance between the first guide rail and the second guide rail is narrower than the distance between the second guide rail and the third guide rail, and at the top of the hoistway, the height position of the upper end of the second guide rail is lower than the height position of the upper ends of the first guide rail and the third guide rail, and the support frame is installed so as to pass over the upper end of the second guide rail and straddle the first guide rail and the third guide rail, and the hoisting machine is installed on the support frame, A hoisting machine lifting process involves lifting the hoisting machine to the top of the elevator shaft through a second space extending vertically between the second guide rail and the third guide rail, The process involves moving the lifted hoisting machine laterally, The process involves lifting the frame vertically through the second space to the top of the elevator shaft, The system includes a fixing process for securing the frame to the guide rails and for securing the hoisting machine to the frame. The fixing process is, A temporary mounting position fixing process for the mounting frame, in which the mounting frame is fixed to the guide rail at a temporary position lower in height than the regular position, The hoisting machine fixing process involves fixing the hoisting machine to a temporary mounting frame, The system includes a step of fixing the frame to the guide rail in the correct position, which involves fixing the frame on which the hoisting machine is fixed to the guide rail in the correct position. Installation method for elevator hoisting machines.

4. A method for installing an elevator hoisting machine, wherein the first guide rail of the car, the second guide rail and third guide rail of the counterweight are installed in parallel in the direction along the wall surface in a first space extending vertically between the wall surfaces of the car and the hoistway, and the distance between the first guide rail and the second guide rail is narrower than the distance between the second guide rail and the third guide rail, and at the top of the hoistway, the height position of the upper end of the second guide rail is lower than the height position of the upper ends of the first guide rail and the third guide rail, and the support frame is installed so as to pass over the upper end of the second guide rail and straddle the first guide rail and the third guide rail, and the hoisting machine is installed on the support frame, A lifting process for the support structure, in which the support structure is suspended vertically and lifted to the top of the elevator shaft through a second space extending vertically between the second guide rail and the third guide rail, The process involves moving the suspended frame horizontally, The hoisting machine lifting process involves lifting the hoisting machine through a second space to the top of the elevator shaft, The system includes a fixing process for securing the frame to the guide rails and for securing the hoisting machine to the frame. Before the initial lifting process, there is an upper rail removal process in which the uppermost guide rail of the second guide rail is removed by disconnecting it from the guide rail below it, The process includes an upper rail installation step, which involves reattaching the uppermost guide rail that was removed, either before, during, or after the fixing process, to return it to its original state. Installation method for elevator hoisting machines.

5. A method for installing an elevator hoisting machine, wherein the first guide rail of the car, the second guide rail and third guide rail of the counterweight are installed in parallel in the direction along the wall surface in a first space extending vertically between the wall surfaces of the car and the hoistway, and the distance between the first guide rail and the second guide rail is narrower than the distance between the second guide rail and the third guide rail, and at the top of the hoistway, the height position of the upper end of the second guide rail is lower than the height position of the upper ends of the first guide rail and the third guide rail, and the support frame is installed so as to pass over the upper end of the second guide rail and straddle the first guide rail and the third guide rail, and the hoisting machine is installed on the support frame, A lifting process for the support structure, in which the support structure is suspended vertically and lifted to the top of the elevator shaft through a second space extending vertically between the second guide rail and the third guide rail, A lateral movement process of the suspended frame is performed to move it laterally so that the degree of openness of the second space is increased, The hoisting machine lifting process involves lifting the hoisting machine through a second space to the top of the elevator shaft, The system includes a fixing step for securing the frame to the guide rails and for securing the hoisting machine to the frame. Installation method for elevator hoisting machines.

6. A method for installing an elevator hoisting machine, wherein the first guide rail of the car, the second guide rail and third guide rail of the counterweight are installed in parallel in the direction along the wall surface in a first space extending vertically between the wall surfaces of the car and the hoistway, and the distance between the first guide rail and the second guide rail is narrower than the distance between the second guide rail and the third guide rail, and at the top of the hoistway, the height position of the upper end of the second guide rail is lower than the height position of the upper ends of the first guide rail and the third guide rail, and the support frame is installed so as to pass over the upper end of the second guide rail and straddle the first guide rail and the third guide rail, and the hoisting machine is installed on the support frame, A lifting process for the support structure, in which the support structure is suspended vertically and lifted to the top of the elevator shaft through a second space extending vertically between the second guide rail and the third guide rail, The process involves moving the suspended frame horizontally, The hoisting machine lifting process involves lifting the hoisting machine through a second space to the top of the elevator shaft, The system includes a fixing process for securing the frame to the guide rails and for securing the hoisting machine to the frame. The fixing process is, A temporary mounting position fixing process for the mounting frame, in which the mounting frame is fixed to the guide rail at a temporary position lower in height than the regular position, The hoisting machine fixing process involves fixing the hoisting machine to a temporary mounting frame, The system includes a step of fixing the frame to the guide rail in the correct position, which involves fixing the frame on which the hoisting machine is fixed to the guide rail in the correct position. Installation method for elevator hoisting machines.

7. Prior to the fixing process, the system includes a lateral movement process of the hoisting machine, in which the lifted hoisting machine is moved laterally to increase the degree of opening in the second space. A method for installing an elevator hoisting machine according to any one of claims 4 to 6.

8. A shorter guide rail is used as the uppermost guide rail. A method for installing an elevator hoisting machine according to claim 1 or claim 4.

9. The lateral movement process includes a switching process in which the hoisting machine or frame is switched from the lifting machine used in the lifting process to another lifting machine whose vertical center of lifting is located closer to the first guide rail than the vertical center of lifting machine used in the lifting process. A method for installing an elevator hoisting machine according to any one of claims 1 to 6.

10. As an alternative lifting method, two lifting machines are used, positioned at a predetermined distance from each other along the wall of the hoistway to perform two-point lifting. A method for installing an elevator hoisting machine as described in claim 9.

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