Elevator system and method for installing its hoisting machine

Abstract

To provide an elevator apparatus and a hoist installation method thereof capable of effectively installing a hoist on the top of a hoistway.SOLUTION: A machine stand 11, a hoist 12, a pair of rail supporting bases 31, and a pair of top rail members 22 are unitized. Thus, a hoist unit 30 has the machine stand 11, the hoist 12, the pair of the rail supporting bases 31, and the pair of the top rail members 22. The hoist unit 30 is supported on a pair of base guide rails 21.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present disclosure relates to an elevator device and a method for installing a hoisting machine thereof.

Background Art

[0002] In a conventional method for installing a hoisting machine, a hoisting machine installation base is fixed to the top of a hoistway, and a lifting mechanism is installed below the hoisting machine installation base. After that, the hoisting machine is placed on the lifting mechanism, and the hoisting machine is lifted by the lifting mechanism to the same height as the hoisting machine installation base. Then, the hoisting machine is horizontally moved from the lifting mechanism onto the hoisting machine installation base by a horizontal movement mechanism and installed on the hoisting machine installation base (see, for example, Patent Document 1).

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the conventional method for installing a hoisting machine as described above, the horizontal movement operation and installation operation of the hoisting machine onto the hoisting machine installation base are performed at the top of a narrow hoistway. Therefore, the work is time-consuming and the work efficiency is low.

[0005] The present disclosure has been made to solve the above problems, and an object thereof is to obtain an elevator device and a method for installing a hoisting machine thereof that can efficiently install the hoisting machine at the top of a hoistway.

Means for Solving the Problems

[0006] The elevator device according to this disclosure is installed in a hoistway and comprises a base guide rail for guiding the movement of the elevator body, and a hoisting machine unit supported on the base guide rail. The hoisting machine unit comprises a machine base, a hoisting machine installed on the machine base, a rail support base provided at the lower part of the machine base, and a top rail member attached to the rail support base and joined to the base guide rail. Furthermore, the method for installing a hoisting machine of an elevator system according to this disclosure includes a rail installation step of installing a base guide rail in the hoistway, a machine base lifting step of lifting the machine base in the hoistway, a hoisting machine unit assembly step of lifting the hoisting machine and the top rail member separately in the hoistway, installing the hoisting machine on the machine base and attaching the top rail member to the machine base to assemble the hoisting machine unit, a hoisting machine unit lifting step of further lifting the hoisting machine unit, and a rail connection step of joining the top rail member onto the base guide rail. [Effects of the Invention]

[0007] According to this disclosure, the hoisting machine can be efficiently installed at the top of the elevator shaft. [Brief explanation of the drawing]

[0008] [Figure 1] This is a side view showing the main parts of the elevator device according to Embodiment 1. [Figure 2] This is a cross-sectional view along the line II-II in Figure 1. [Figure 3] Figure 1 is a configuration diagram showing the second cage guide rail, the first counterweight guide rail, and the second counterweight guide rail. [Figure 4] Figure 1 is a perspective view showing the hoisting machine unit. [Figure 5] Figure 4 is a front view showing the hoisting machine unit. [Figure 6] Figure 5 is a right side view showing the hoisting machine unit. [Figure 7] Figure 5 is a plan view showing the hoisting machine unit. [Figure 8]It is a perspective view showing an enlarged view of the wall fixing bracket in FIG. 4. [Figure 9] It is a perspective view showing an enlarged view of the rail unit in FIG. 4. [Figure 10] It is a perspective view of the main part of the rail unit in FIG. 9 seen from an angle different from that in FIG. 9. [Figure 11] It is a perspective view showing the process of temporarily fixing the machine base to the second cage guide rail. [Figure 12] It is a perspective view showing the state where the hoisting machine is installed on the machine base in FIG. 11. [Figure 13] It is a front view showing the state where a pair of rail units are connected to the machine base in FIG. 12. [Figure 14] It is a perspective view of a part of the hoisting machine unit in FIG. 13 seen obliquely from below. [Figure 15] It is a process diagram showing the hoisting machine installation method of Embodiment 1.

Mode for Carrying Out the Invention

[0009] Hereinafter, embodiments will be described with reference to the drawings. Embodiment 1. FIG. 1 is a side view showing the main part of the elevator device according to Embodiment 1. FIG. 2 is a cross-sectional view taken along line II-II in FIG. 1. Note that FIG. 1 is a view seen along line I-I in FIG. 2.

[0010] In the drawing, in the hoistway 1, a cage 2 and a counterweight 3 as a lifting body are provided. When looking at the hoistway 1 from directly above, the cage 2 has a first side surface 2a, a second side surface 2b, a front surface 2c, and a rear surface 2d. The first side surface 2a and the second side surface 2b face each other. A cage entrance is provided on the front surface. The rear surface 2d faces the front surface 2c.

[0011] When looking at the hoistway 1 from directly above, the counterweight 3 faces the second side surface 2b. That is, when viewed from the landing, the lifting area of the counterweight 3 is located on the side of the lifting area of the cage 2.

[0012] Inside the hoistway 1, a first car guide rail 4, a second car guide rail 5, a first counterweight guide rail 6, and a second counterweight guide rail 7 are installed.

[0013] The first car guide rail 4 and the second car guide rail 5 guide the ascent and descent of the car 2. The first car guide rail 4 faces the first side surface 2a. The second car guide rail 5 faces the second side surface 2b.

[0014] The first counterweight guide rail 6 and the second counterweight guide rail 7 guide the ascent and descent of the counterweight 3.

[0015] The first car guide rail 4 is arranged on the side of the car 2 opposite to the counterweight 3 as viewed from the landing. The second car guide rail 5 is arranged on the same side of the car 2 as the counterweight 3 as viewed from the landing.

[0016] Each of the first car guide rail 4, the second car guide rail 5, the first counterweight guide rail 6, and the second counterweight guide rail 7 is fixed to a plurality of building beams 9 via a plurality of rail brackets 8. In FIG. 1, the plurality of building beams 9 are omitted. In FIG. 2, the plurality of rail brackets 8 are omitted.

[0017] The upper ends of the first counterweight guide rail 6 and the second counterweight guide rail 7 are located below the upper end of the second car guide rail 5.

[0018] At the top of the hoistway 1, a machine platform 11 is installed. The machine platform 11 is supported by the first counterweight guide rail 6 and the second counterweight guide rail 7.

[0019] On the machine platform 11, a hoisting machine 12 is installed. The elevator device of Embodiment 1 is a machine-roomless elevator. The hoisting machine 12 has a drive sheave 13 and a hoisting machine main body 14.

[0020] The hoisting machine body 14 includes a hoisting machine motor (not shown) and a hoisting machine brake (not shown). The hoisting machine motor rotates the drive sheave 13. The hoisting machine brake maintains the drive sheave 13 in a stationary state. The hoisting machine brake also brakes the rotation of the drive sheave 13.

[0021] Each of the first counterweight guide rail 6 and the second counterweight guide rail 7 has a base guide rail 21 and a top rail member 22. The top rail member 22 is joined to the base guide rail 21.

[0022] A pair of rail support bases 31 are attached to the lower part of the machine base 11. Each rail support base 31 protrudes vertically downward from the machine base 11. A corresponding top rail member 22 is attached to each rail support base 31.

[0023] The machine base 11, the hoisting machine 12, the pair of rail support bases 31, and the pair of top rail members 22 are unitized. That is, the hoisting machine unit 30 of Embodiment 1 has the machine base 11, the hoisting machine 12, the pair of rail support bases 31, and the pair of top rail members 22. The hoisting machine unit 30 is supported on the pair of base guide rails 21.

[0024] Furthermore, each rail support base 31 and the top rail member 22 fixed to the rail support base 31 constitute a rail unit 35. The hoisting machine unit 30 includes two sets, i.e., a pair of rail units 35.

[0025] A suspension system 16 is wrapped around the drive sheave 13. The suspension system 16 is made up of multiple ropes or multiple belts. The cage 2 and counterweight 3 are suspended by the suspension system 16 and move up and down within the hoistway 1 by rotating the drive sheave 13.

[0026] A first cage suspension wheel 17 and a second cage suspension wheel 18 are provided at the bottom of cage 2. A counterweight suspension wheel 19 is provided at the top of counterweight 3.

[0027] At the top of the elevator shaft 1, the first car guide rail 4 is provided with a car-side rope-stopping beam (not shown). A pair of rail support bases 31 have weight-side rope-stopping beams 32 fixed to them.

[0028] The suspension body 16 has a first end and a second end. The first end is connected to the cage-side rope-retaining beam. The second end is connected to the weight-side rope-retaining beam 32.

[0029] The suspension body 16 is wrapped around the first car suspension wheel 17, the second car suspension wheel 18, the drive sheave 13, and the counterweight suspension wheel 19 in order from the first end, and reaches the second end. The roping method of the elevator device in Embodiment 1 is a 2:1 roping method.

[0030] Figure 3 is a configuration diagram showing the second cage guide rail 5, the first counterweight guide rail 6, and the second counterweight guide rail 7 of Figure 1.

[0031] In each of the first counterweight guide rail 6 and the second counterweight guide rail 7, the base guide rail 21 has a plurality of main rail members 23 and an upper rail member 24.

[0032] In each base guide rail 21, multiple main rail members 23 are joined together in the vertical direction. The upper rail member 24 is joined onto the uppermost main rail member 23.

[0033] In both the first counterweight guide rail 6 and the second counterweight guide rail 7, the top rail member 22 is joined onto the upper rail member 24.

[0034] The cross-sectional configuration of the top rail member 22, the main rail member 23, and the upper rail member 24 are the same. The materials of the top rail member 22, the main rail member 23, and the upper rail member 24 are the same.

[0035] The length of the upper rail member 24 is shorter than the length of the main rail member 23. In this example, the length of the upper rail member 24 is half the length of the main rail member 23.

[0036] The length of the top rail member 22 is shorter than the length of the upper rail member 24. In this example, the top rail member 22 is made shorter than the upper rail member 24 by cutting the same rail member as the upper rail member 24.

[0037] Each of the first cage guide rail 4 and the second cage guide rail 5 is constructed by joining multiple main rail members 23 together in the vertical direction.

[0038] Figure 4 is a perspective view showing the hoisting machine unit 30 of Figure 1. Figure 5 is a front view showing the hoisting machine unit 30 of Figure 4. Figure 6 is a right side view showing the hoisting machine unit 30 of Figure 5. Figure 7 is a top view showing the hoisting machine unit 30 of Figure 5.

[0039] The hoisting machine unit 30 further includes a pair of wall-mounting brackets 33 and rail connectors 34. Each wall-mounting bracket 33 is fixed to the upper part of the machine base 11 by a plurality of bracket fasteners (not shown). Each wall-mounting bracket 33 is also fixed to the hoistway wall by a plurality of anchor bolts (not shown).

[0040] The rail connector 34 is fixed to the lower part of the machine base 11. The rail connector 34 is also connected to the second cage guide rail 5.

[0041] Figure 8 is an enlarged perspective view of the wall-mounting bracket 33 shown in Figure 4. The wall-mounting bracket 33 has a flat machine base mounting portion 33a, a flat wall mounting portion 33b, and a flat rib 33c.

[0042] The machine base fixing part 33a is fixed to the upper part of the machine base 11. The wall fixing part 33b protrudes upward at a right angle to the machine base fixing part 33a. The wall fixing part 33b is also fixed to the hoistway wall. The rib 33c is fixed to the machine base fixing part 33a and the wall fixing part 33b.

[0043] The machine base fixing portion 33a is provided with multiple first bracket elongated holes 33d. Each bracket fixing device is passed through the corresponding first bracket elongated hole 33d. This allows the fixing position of the wall fixing bracket 33 relative to the machine base 11 to be adjusted in a direction parallel to the axial direction of the hoisting machine 12. The axial direction of the hoisting machine 12 is the vertical direction in Figure 7, which is the direction of approaching or moving away from the hoistway wall.

[0044] The wall fixing portion 33b is provided with multiple elongated holes 33e in the second bracket. Each anchor bolt is passed through the corresponding elongated hole 33e in the second bracket. This allows the fixing position of the wall fixing bracket 33 relative to the hoistway wall to be adjusted in the vertical direction.

[0045] Next, the hoisting machine installation method of Embodiment 1 will be described. In the hoisting machine installation method of Embodiment 1, first, the first car guide rail 4, the second car guide rail 5, and a pair of base guide rails 21 are installed in the hoistway 1.

[0046] Furthermore, the cage frame of the cage 2 is assembled within the elevator shaft 1. Then, a work platform is assembled on top of the cage frame. The cage frame can be raised and lowered along the first cage guide rail 4 and the second cage guide rail 5 by a winch (not shown). Work within the elevator shaft 1 can be performed on the work platform.

[0047] Furthermore, two top rail members 22 are manufactured at the installation site. Each top rail member 22 is manufactured by cutting the same rail member as the upper rail member 24. The length of the top rail members 22 is determined based on the height dimension of the elevator shaft 1.

[0048] After this, the pair of rail units 35 are assembled by fixing the top rail members 22 to each of the pair of rail support bases 31.

[0049] Figure 9 is a perspective view showing an enlarged view of the rail unit 35 in Figure 4. Figure 10 is a perspective view of the main part of the rail unit 35 in Figure 9, viewed from a different angle than in Figure 9. The rail support base 31 has a flat machine base connection part 31a, a rail fixing part 31b, and a rope-stopping beam fixing part 31c.

[0050] The machine base connection portion 31a is fixed to the lower part of the machine base 11 by a plurality of support base fasteners (not shown). The machine base connection portion 31a is provided with a plurality of support base elongated holes 31d. Each support base fastener is passed through the corresponding support base elongated hole 31d.

[0051] As a result, the horizontal position of the rail support base 31 relative to the machine base 11 can be adjusted in the longitudinal direction of the machine base 11 while the rail support base 31 remains connected to the machine base 11. The longitudinal direction of the machine base 11 is parallel to the straight line connecting the center of the first counterweight guide rail 6 and the center of the second counterweight guide rail 7 when viewing the hoistway 1 from directly above, and is the left-right direction in Figure 5.

[0052] The top rail member 22 is fixed to the rail fixing portion 31b. The horizontal cross-sectional shape of the rail fixing portion 31b is U-shaped. The top rail member 22 is inserted inside the rail fixing portion 31b. With the top rail member 22 fixed to the rail fixing portion 31b, a spring pin 31e is installed in the rail fixing portion 31b.

[0053] The rope-stopping beam fixing section 31c is fixed to the rail fixing section 31b. The weight-side rope-stopping beam 32 is fixed to the rope-stopping beam fixing section 31c.

[0054] After the pair of rail units 35 are assembled, the machine platform 11 is lifted into the hoistway 1. At this time, the machine platform 11 is lifted above the pair of base guide rails 21. The machine platform 11 is also lifted using a manual chain hoist (not shown).

[0055] Subsequently, as shown in Figure 11, the first end of the machine base 11 in the longitudinal direction is temporarily fixed to the second cage guide rail 5. The second cage guide rail 5 is a guide rail separate from the base guide rail 21 in Embodiment 1.

[0056] At this time, a pair of wall-mounting brackets 33 are used to temporarily fix the machine base 11 to the second car guide rail 5. Each wall-mounting bracket 33 has a wall-mounting portion 33b that is configured to connect to the second car guide rail 5 as well. Each wall-mounting portion 33b is connected to the second car guide rail 5 using a plurality of rail clips (not shown).

[0057] Furthermore, the second end of the machine base 11 in the longitudinal direction is connected to a manual chain hoist via a wire 36.

[0058] Next, the hoisting machine 12 is lifted into the elevator shaft 1. Then, as shown in Figure 12, the hoisting machine 12 is installed on the machine base 11. At this time, the hoisting machine 12 is lifted using an electric chain hoist (not shown).

[0059] Next, within the elevator shaft 1, a pair of rail units 35 are lifted up. Then, the pair of rail units 35 are connected to the machine base 11. That is, a pair of top rail members 22 are attached to the machine base 11 via a pair of rail support bases 31. This completes the assembly of the hoisting machine unit 30.

[0060] Figure 13 is a front view showing the machine base 11 of Figure 12 with a pair of rail units 35 connected. Figure 14 is a perspective view of a part of the hoisting machine unit 30 of Figure 13, viewed from diagonally below.

[0061] In this configuration, the lower parts of the pair of rail units 35 are positioned between the pair of base guide rails 21. That is, the spacing between the pair of top rail members 22 is narrower than the spacing between the pair of top rail members 22 after installation. This prevents interference between the pair of rail units 35 and the pair of base guide rails 21.

[0062] After this, the temporary fixing of the machine base 11 to the second cage guide rail 5 is released, and the hoisting unit 30 is further lifted using an electric chain hoist.

[0063] Next, the position of the pair of top rail members 22 relative to the machine base 11, i.e., the position of the pair of rail units 35, is adjusted so that the pair of top rail members 22 are positioned directly above the pair of base guide rails 21. In this example, the distance between the pair of rail units 35 is increased. Then, the corresponding top rail members 22 are joined onto each base guide rail 21.

[0064] After this, clamps (not shown) are inserted between each rail support 31 and the machine base 11 as needed to ensure the machine base 11 is level.

[0065] Finally, the machine base 11 is fixed to the hoistway wall via a pair of wall-mounting brackets 33. The machine base 11 is also connected to the second car guide rail 5 via rail connectors 34. In addition, the counterweight rope-stopping beams 32 are fixed to a pair of rail support bases 31.

[0066] Figure 15 is a process diagram that summarizes the hoisting machine installation method described above. Rail installation process S101 is the process of installing the first car guide rail 4, the second car guide rail 5, and a pair of base guide rails 21 within the elevator shaft 1.

[0067] The rail cutting process S102 is a process in which a top rail member 22 shorter than the upper rail member 24 is manufactured by cutting the same rail member as the upper rail member 24. In the rail cutting process S102, a pair of top rail members 22 are manufactured. Also, the rail cutting process S102 is performed before the rail unit assembly process S103.

[0068] Rail unit assembly process S103 is the process of assembling the rail unit 35 by fixing the top rail member 22 to the rail support base 31. In rail unit assembly process S103, a pair of rail units 35 are assembled. Also, rail unit assembly process S103 is performed before hoisting machine unit assembly process S106.

[0069] The machine platform lifting process S104 is the process of lifting the machine platform 11 within the elevator shaft 1.

[0070] The temporary fixing process S105 is the process of temporarily fixing the machine base 11 to the second cage guide rail 5. Also, the temporary fixing process S105 is performed before the hoisting machine unit assembly process S106.

[0071] The hoisting machine unit assembly process S106 is the process of assembling the hoisting machine unit 30. Specifically, the hoisting machine unit assembly process S106 is the process of lifting the hoisting machine 12 and the pair of rail units 35 within the elevator shaft 1, installing the hoisting machine 12 on the machine base 11, and attaching the pair of rail units 35 to the machine base 11.

[0072] The hoisting machine unit lifting process S107 is a process in which the temporary fixing of the machine base 11 is released and the hoisting machine unit 30 is further lifted.

[0073] The rail position adjustment step S108 is a step in which the horizontal position of the pair of top rail members 22 relative to the machine base 11 is adjusted. Furthermore, the rail position adjustment step S108 is performed before the rail connection step S109.

[0074] Rail connection process S109 is a process of joining the corresponding top rail members 22 onto each base guide rail 21.

[0075] The wall fixing process S110 is the process of fixing the machine base 11 to the elevator shaft wall using a pair of wall fixing brackets 33. The wall fixing process S110 is performed after the rail connection process S109. The pair of wall fixing brackets 33 used in the wall fixing process S110 are also used in the temporary fixing process S105 when temporarily fixing the machine base 11 to the second car guide rail 5.

[0076] In such an elevator system, the hoisting machine unit 30 is supported on a pair of base guide rails 21. The hoisting machine unit 30 includes a machine base 11, a hoisting machine 12, a pair of rail support bases 31, and a pair of top rail members 22. The pair of rail support bases 31 are located at the bottom of the machine base 11. Each top rail member 22 is attached to a rail support base 31 and joined together on the base guide rails 21.

[0077] Therefore, the assembled hoisting machine unit 30 can be lifted and installed on a pair of base guide rails 21. Consequently, there is no need to install the hoisting machine 12 on the machine base 11 in the narrow space at the top of the hoistway 1. Furthermore, since a pair of top rail members 22 are attached to the lower part of the machine base 11, the center of gravity of the hoisting machine unit 30 can be lowered when lifting it, allowing the hoisting machine unit 30 to be lifted stably. This makes it possible to efficiently install the hoisting machine 12 at the top of the hoistway 1.

[0078] Furthermore, the horizontal position of the pair of rail support bases 31 relative to the machine base 11 can be adjusted while the rail support bases 31 remain connected to the machine base 11. This prevents the pair of top rail members 22 from interfering with the pair of base guide rails 21 when lifting the hoisting machine unit 30.

[0079] Furthermore, the length of the upper rail member 24 is shorter than the length of the main rail member 23, and the length of the top rail member 22 is shorter than the length of the upper rail member 24. Therefore, when attaching the top rail member 22 to each rail support base 31, the top rail member 22 can be easily handled.

[0080] Furthermore, the machine base 11 is fixed to the hoistway wall via a pair of wall-mounting brackets 33. This allows for more reliable restriction of the horizontal movement of the hoisting machine unit 30. In addition, the connection of the top rail member 22 to the rail bracket 8 can be omitted.

[0081] Furthermore, the wall-mounting section 33b is configured to be connectable to the second cage guide rail 5. This allows the machine base 11 to be temporarily fixed to the second cage guide rail 5 while suppressing an increase in the number of parts, enabling the hoisting machine unit 30 to be stably assembled within the elevator shaft 1.

[0082] Furthermore, a weight-side rope-stopping beam 32 is fixed to a pair of rail support bases 31. This allows the weight-side rope-stopping beam 32 to be easily positioned within the hoisting machine unit 30.

[0083] Furthermore, in the hoisting machine installation method of Embodiment 1, a pair of base guide rails 21 are installed in the elevator shaft 1, and the machine base 11 is lifted up within the elevator shaft 1. Then, the hoisting machine 12 and a pair of top rail members 22 are lifted up within the elevator shaft 1, and the hoisting machine 12 is installed on the machine base 11, and the pair of top rail members 22 are attached to the machine base 11, thereby assembling the hoisting machine unit 30. After this, the hoisting machine unit 30 is lifted further, and the top rail members 22 are joined onto each of the base guide rails 21.

[0084] Therefore, there is no need to install the hoisting machine 12 on the machine base 11 in the narrow space at the top of the elevator shaft 1. In addition, since a pair of top rail members 22 are attached to the lower part of the machine base 11, the center of gravity of the hoisting machine unit 30 can be lowered when lifting the hoisting machine unit 30, allowing the hoisting machine unit 30 to be lifted stably. As a result, the hoisting machine 12 can be efficiently installed at the top of the elevator shaft 1.

[0085] Furthermore, a pair of rail units 35 are assembled by fixing the top rail members 22 to each of the pair of rail support bases 31. When assembling the hoisting machine unit 30, the pair of rail units 35 are lifted up, and the pair of top rail members 22 are attached to the machine base 11 via the pair of rail support bases 31.

[0086] Therefore, each top rail member 22 can be easily lifted and easily attached to the machine base 11.

[0087] Furthermore, before the top rail members 22 are joined to each base guide rail 21, the horizontal position of each top rail member 22 relative to the machine base 11 is adjusted. This prevents the pair of top rail members 22 from interfering with the pair of base guide rails 21 when lifting the hoisting machine unit 30.

[0088] Furthermore, by cutting the same rail member as the upper rail member 24, a top rail member 22 that is shorter than the upper rail member 24 can be manufactured. Therefore, a top rail member 22 that matches the height dimension of the elevator shaft 1 can be easily manufactured. In addition, because the top rail member 22 is shorter than the upper rail member 24, the top rail member 22 can be easily handled when attaching it to each rail support base 31.

[0089] Furthermore, before the hoisting machine unit 30 is assembled, the machine base 11 is temporarily fixed to the second cage guide rail 5. This allows the hoisting machine unit 30 to be assembled stably within the elevator shaft 1.

[0090] Furthermore, the machine base 11 is fixed to the hoistway wall by a pair of wall-mounting brackets 33. This allows for more reliable restriction of the horizontal movement of the hoisting machine unit 30. In addition, the connection of the top rail member 22 to the rail bracket 8 can be omitted.

[0091] Furthermore, the pair of wall-mounting brackets 33 are also used when temporarily fixing the machine base 11 to the second cage guide rail 5. This helps to suppress an increase in the number of parts.

[0092] Note that the order of the steps shown in Figure 15 can be changed as appropriate. For example, the rail cutting step S102 and the rail unit assembly step S103 may be performed before the rail installation step S101.

[0093] Furthermore, the horizontal position of each rail support base 31 relative to the machine base 11 may be adjustable in a direction perpendicular to the longitudinal direction of the machine base 11.

[0094] Furthermore, the horizontal position of each rail support base 31 relative to the machine base 11 does not necessarily have to be adjustable.

[0095] Furthermore, the machine base 11 may be temporarily fixed to other hoistway equipment besides the second car guide rail 5, such as the rail bracket 8 or at least one of the pair of base guide rails 21.

[0096] Furthermore, if the hoisting machine unit 30 can be assembled stably within the elevator shaft 1, the machine base 11 does not necessarily need to be temporarily fixed in place.

[0097] Alternatively, the rail support base 31 may be provided on the machine base 11 as part of the machine base 11. In this case, during the hoisting machine unit assembly process S106, each top rail member 22 is lifted individually without being assembled into a unit and attached to the rail support base 31 on the machine base 11.

[0098] Furthermore, the overall layout of the elevator system is not limited to the layouts shown in Figures 1 and 2. For example, when viewed from the landing, the lifting area of ​​the counterweight 3 may be located behind the lifting area of ​​the elevator car 2. Also, the roping method is not limited to the 2:1 roping method.

[0099] Although preferred embodiments have been described in detail above, the invention is not limited to the embodiments described above, and various modifications and substitutions can be made to the embodiments described above without departing from the scope of the claims.

[0100] The various aspects of this disclosure are summarized below as an appendix.

[0101] (Note 1) A base guide rail installed in the elevator shaft that guides the movement of the elevator body, and Hoisting machine unit supported on the base guide rail Equipped with, The aforementioned hoisting machine unit is Machine stand and A hoisting machine installed on the aforementioned machine stand, A rail support base provided at the lower part of the machine base, The top rail member is attached to the rail support base and joined to the base guide rail. An elevator system having the following features. (Note 2) The rail support base is attached to the machine base, The elevator device according to Appendix 1, wherein the horizontal position of the rail support base with respect to the machine base is adjustable while the rail support base is connected to the machine base. (Note 3) The base guide rail comprises a main rail member and an upper rail member joined to the main rail member. The top rail member is joined to the upper rail member, The length of the upper rail member is shorter than the length of the main rail member. The elevator device according to Appendix 1 or Appendix 2, wherein the length of the top rail member is shorter than the length of the upper rail member. (Note 4) Wall-mounted bracket fixed to the machine base and also fixed to the hoistway wall. An elevator device as described in any one of the appendices 1 to 3, further comprising the features described herein. (Note 5) basket, and A car guide rail is installed within the aforementioned elevator shaft to guide the raising and lowering of the elevator car. Furthermore, The aforementioned lifting body is a counterweight, The wall-mounted bracket has a wall-mounted portion that is fixed to the elevator shaft wall. The elevator device described in Appendix 4, wherein the wall-mounted portion is also configured to be connectable to the car guide rail. (Note 6) The rope-stopping beam fixed to the rail support base An elevator device as described in any one of the appendices 1 to 5, further comprising the features described herein. (Note 7) Rail installation process: Installing the base guide rail inside the elevator shaft. Machine platform lifting process, in which the machine platform is lifted within the aforementioned elevator shaft. A hoisting machine unit assembly process is performed in which the hoisting machine and the top rail member are lifted up within the elevator shaft, the hoisting machine is installed on the machine base, and the top rail member is attached to the machine base, thereby assembling the hoisting machine unit. A hoisting machine unit lifting process for further lifting the hoisting machine unit, and Rail connection process: Joining the top rail member onto the base guide rail. A method for installing a hoisting machine in an elevator system, including [specific components / features]. (Note 8) Rail unit assembly process, which involves fixing the top rail member to the rail support base, before the hoisting machine unit assembly process. It further includes, The method for installing a hoisting machine for an elevator device as described in Appendix 7, wherein in the hoisting machine unit assembly process, the rail unit is lifted, and the top rail member is attached to the machine base via the rail support base. (Note 9) Prior to the rail connection step, a rail position adjustment step is performed to adjust the horizontal position of the top rail member relative to the machine base. A method for installing a hoisting machine for an elevator system as described in Appendix 7 or Appendix 8, further including the above. (Note 10) The base guide rail comprises a main rail member and an upper rail member joined to the main rail member. Rail cutting process: A rail member that is shorter than the upper rail member is manufactured by cutting the same rail member as the upper rail member. A method for installing a hoisting machine for an elevator system, as described in any one of the appendices 7 to 9, further including the above. (Note 11) Prior to the assembly process of the hoisting machine unit, a temporary fixing process is performed in which the machine base is temporarily fixed to a guide rail separate from the base guide rail. A method for installing a hoisting machine for an elevator system, as described in any one of the appendices 7 to 10, further including the above. (Note 12) After the rail connection step, a wall fixing step is performed in which the machine base is fixed to the elevator shaft wall using wall fixing brackets. It further includes, The method for installing an elevator hoisting machine according to Appendix 11, wherein the wall-mounting bracket is also used when temporarily fixing the machine base to the other guide rail in the temporary fixing step. [Explanation of symbols]

[0102] 1 Hoistway, 2 Cage, 3 Counterweight (lifting body), 5 Second cage guide rail (another guide rail), 11 Machine base, 12 Hoisting machine, 21 Base guide rail, 22 Top rail member, 23 Main rail member, 24 Upper rail member, 30 Hoisting machine unit, 31 Rail support base, 32 Counterweight side rope fixing beam, 33 Wall fixing bracket, 33b Wall fixing part, 35 Rail unit.

Claims

1. A base guide rail installed in the elevator shaft that guides the movement of the elevator body, and Hoisting machine unit supported on the base guide rail Equipped with, The aforementioned hoisting machine unit is Machine stand and A hoisting machine installed on the aforementioned machine stand, A rail support base provided at the lower part of the machine base, The top rail member is attached to the rail support base and joined to the base guide rail. It has, The rail support base is attached to the machine base, An elevator device in which the horizontal position of the rail support base relative to the machine base can be adjusted while the rail support base remains connected to the machine base.

2. A base guide rail installed in the elevator shaft that guides the movement of the elevator body, and Hoisting machine unit supported on the base guide rail Equipped with, The aforementioned hoisting machine unit is Machine stand and A hoisting machine installed on the aforementioned machine stand, A rail support base provided at the lower part of the machine base, The top rail member is attached to the rail support base and joined to the base guide rail. It has, The base guide rail comprises a main rail member and an upper rail member joined to the main rail member. The top rail member is joined to the upper rail member, The length of the upper rail member is shorter than the length of the main rail member. An elevator device in which the length of the top rail member is shorter than the length of the upper rail member.

3. Basket, A car guide rail is installed in the elevator shaft and guides the elevator car's movement up and down. Counterweight, A base guide rail installed in the aforementioned elevator shaft, which guides the raising and lowering of the counterweight, The hoisting machine unit supported on the base guide rail, and Wall-mounted bracket fixed to the hoistway wall Equipped with, The aforementioned hoisting machine unit is Machine stand and A hoisting machine installed on the aforementioned machine stand, A rail support base provided at the lower part of the machine base, The top rail member is attached to the rail support base and joined to the base guide rail. It has, The wall-mounting bracket is fixed to the machine base, The wall-mounted bracket has a wall-mounted portion that is fixed to the elevator shaft wall. The aforementioned wall-mounted portion is configured to be connectable to the aforementioned car guide rail as well.

4. The rope-stopping beam fixed to the rail support base The elevator device according to any one of claims 1 to 3, further comprising the above.

5. Rail installation process: Installing the base guide rail inside the elevator shaft. Machine platform lifting process, in which the machine platform is lifted within the aforementioned elevator shaft. A hoisting machine unit assembly process is performed in which the hoisting machine and the top rail member are lifted up within the elevator shaft, the hoisting machine is installed on the machine base, and the top rail member is attached to the machine base, thereby assembling the hoisting machine unit. A hoisting machine unit lifting process for further lifting the hoisting machine unit, and Rail connection process: Joining the top rail member onto the base guide rail. Includes, Rail unit assembly process, which involves fixing the top rail member to the rail support base, before the hoisting machine unit assembly process. It further includes, A method for installing a hoisting machine for an elevator device, wherein in the hoisting machine unit assembly process, the rail unit is lifted, and the top rail member is attached to the machine base via the rail support base.

6. Rail installation process: Installing the base guide rail inside the elevator shaft. Machine platform lifting process, in which the machine platform is lifted within the aforementioned elevator shaft. A hoisting machine unit assembly process is performed in which the hoisting machine and the top rail member are lifted up within the elevator shaft, the hoisting machine is installed on the machine base, and the top rail member is attached to the machine base, thereby assembling the hoisting machine unit. A hoisting machine unit lifting process for further lifting the hoisting machine unit, and Rail connection process: Joining the top rail member onto the base guide rail. Includes, Prior to the rail connection step, a rail position adjustment step is performed to adjust the horizontal position of the top rail member relative to the machine base. A method for installing a hoisting machine in an elevator system, further including the above.

7. Rail installation process: Installing the base guide rail inside the elevator shaft. Machine platform lifting process, in which the machine platform is lifted within the aforementioned elevator shaft. A hoisting machine unit assembly process is performed in which the hoisting machine and the top rail member are lifted up within the elevator shaft, the hoisting machine is installed on the machine base, and the top rail member is attached to the machine base, thereby assembling the hoisting machine unit. A hoisting machine unit lifting process for further lifting the hoisting machine unit, and Rail connection process: Joining the top rail member onto the base guide rail. Includes, The base guide rail comprises a main rail member and an upper rail member joined to the main rail member. Rail cutting process: A rail member that is shorter than the upper rail member is manufactured by cutting the same rail member as the upper rail member. A method for installing a hoisting machine in an elevator system, further including the above.

8. Rail installation process: Installing the base guide rail inside the elevator shaft. Machine platform lifting process, in which the machine platform is lifted within the aforementioned elevator shaft. A hoisting machine unit assembly process is performed in which the hoisting machine and the top rail member are lifted up within the elevator shaft, the hoisting machine is installed on the machine base, and the top rail member is attached to the machine base, thereby assembling the hoisting machine unit. A hoisting machine unit lifting process for further lifting the hoisting machine unit, and Rail connection process: Joining the top rail member onto the base guide rail. Includes, Prior to the assembly process of the hoisting machine unit, a temporary fixing process is performed in which the machine base is temporarily fixed to a guide rail separate from the base guide rail. A method for installing a hoisting machine in an elevator system, further including the above.

9. After the rail connection step, a wall fixing step is performed in which the machine base is fixed to the elevator shaft wall using wall fixing brackets. It further includes, The method for installing a hoisting machine for an elevator device according to claim 8, wherein the wall fixing bracket is also used when temporarily fixing the machine base to the other guide rail in the temporary fixing step.

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