Hoisting machine installation auxiliary device of elevator and transformation method of elevator

Abstract

The invention provides an auxiliary device for installing a hoisting machine of an elevator and a transformation method of the elevator, which can reduce the labor and time of replacing the hoisting machine. The elevator traction machine installation auxiliary device (8) is provided with a connecting body (83) and a connecting piece (84). The connecting body (83) is installed on a supporting platform (5) through a posture maintaining installation piece (55) which is inserted into a second through hole (531) of the supporting platform (5) arranged at the bottom of the hoistway (1). The connecting piece (84) is inserted into a second threaded hole (742) of the mounting hoist (7), and connects the connecting body (83) and the mounting hoist (7). The distance from the first threaded hole (732) to the second threaded hole (742) is different from the distance from the first through hole (521) to the second through hole (531). The hoisting machine (7) for installation is installed on the supporting platform (5) through a load supporting installation piece (54) inserted into the first through hole (521) and the first threaded hole (732).

Description

Technical Field

[0001] The present invention relates to an elevator hoisting machine installation auxiliary device and an elevator modification method. Background Art

[0002] Patent Document 1 discloses an elevator in which a hoisting machine is mounted on a hoisting machine support platform fixed to the bottom of a hoistway by a plurality of fasteners.

[0003] Prior art literature

[0004] Patent Literature

[0005] Patent Document 1: Japanese Patent No. 3502270 Summary of the invention

[0006] Problems to be solved by the invention

[0007] When replacing an existing hoisting machine with a new one, it is sometimes difficult to prepare a new hoisting machine of the same type as the existing one due to the update of the manufacturing equipment for manufacturing the hoisting machine, etc. In this case, since the position of the mounting part of the new hoisting machine is different from the position of the mounting part of the existing hoisting machine support, the new hoisting machine cannot be mounted on the existing hoisting machine support. Therefore, not only the hoisting machine but also the hoisting machine support needs to be replaced together, and the operation of replacing the hoisting machine is labor-intensive and time-consuming.

[0008] The present disclosure is made to solve the above-mentioned problems, and an object of the present disclosure is to provide an elevator hoisting machine installation auxiliary device and an elevator modification method that can reduce the labor and time of the work of replacing the hoisting machine.

[0009] Means for solving problems

[0010] The hoisting machine installation auxiliary device of the elevator disclosed in the present invention comprises: a connecting body, which is installed on a support platform set at the bottom of the hoistway through a posture maintaining mounting piece, and the posture maintaining mounting piece is inserted into the second supporting platform mounting hole of the first supporting platform mounting hole and the second supporting platform mounting hole of the supporting platform; and a connecting piece, which is inserted into the second hoisting machine mounting hole of the first hoisting machine mounting hole and the second hoisting machine mounting hole of the installing hoisting machine, and connects the connecting body with the installing hoisting machine, the distance from the first hoisting machine mounting hole to the second hoisting machine mounting hole is different from the distance from the first supporting platform mounting hole to the second supporting platform mounting hole, the first hoisting machine mounting hole is located at a position closer to the driving sheave of the installing hoisting machine than the second hoisting machine mounting hole, and the installing hoisting machine is installed on the supporting platform by the load supporting mounting piece inserted into the first supporting platform mounting hole and the first hoisting machine mounting hole.

[0011] In addition, the elevator modification method disclosed in the present invention includes: a removal step of removing the existing hoisting machine from the support platform provided at the bottom of the hoistway; a hoisting machine configuration step of configuring the installation hoisting machine on the support platform after the removal step in a state where the positions of the first hoisting machine mounting holes and the second hoisting machine mounting holes of the installation hoisting machine are aligned with the positions of the first support platform mounting holes of the support platform; and a hoisting machine installation step of, after the hoisting machine configuration step, installing the load-bearing mounting member inserted into the first support platform mounting hole and the first hoisting machine mounting hole. The installation hoist is installed on the support platform; a connection body installation process, after the removal process, the connection body is installed on the support platform by inserting the posture maintaining installation piece into the second support platform mounting hole of the support platform; and a connection process, the connection body is connected to the installation hoist by inserting the connection piece into the second hoist mounting hole, the distance from the first hoist mounting hole to the second hoist mounting hole is different from the distance from the first support platform mounting hole to the second support platform mounting hole, and the first hoist mounting hole is located closer to the driving sheave of the installation hoist than the second hoist mounting hole.

[0012] Effects of the Invention

[0013] According to the present disclosure, it is possible to reduce the labor and time required for replacing the hoisting machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural diagram of the elevator before modification showing the first embodiment.

[0015] Figure 2 Yes means Figure 1 A three-dimensional diagram of an existing traction machine.

[0016] Figure 3 Yes means Figure 1 A three-dimensional view of the support platform.

[0017] Figure 4 Yes means Figure 3 Side view of the support platform.

[0018] Figure 5 Yes means Figure 1 A three-dimensional view of a state in which an existing traction machine is installed on a support platform.

[0019] Figure 6 Yes means Figure 5 A side view of a state in which an existing traction machine is installed on a support platform.

[0020] Figure 7 Yes means Figure 5 A rear view of an existing traction machine installed on a support platform.

[0021] Figure 8It is a perspective view showing the installation hoisting machine according to the first embodiment.

[0022] Fig. 9 It means in Figure 4 A side view of the main parts of a state in which a mounting hoisting machine is mounted on a supporting platform.

[0023] Fig.10 Yes means Fig. 9 A rear view of the state where the traction machine installation auxiliary device is installed on the support platform.

[0024] Fig.11 Yes means Fig. 9 A three-dimensional view of a state in which the traction machine installation auxiliary device is installed on a support platform.

[0025] Fig.12 This is a flowchart showing the elevator modification method according to the first embodiment.

[0026] Fig.13 This is a side view of the main parts showing a state where the installation hoisting machine is mounted on a supporting platform using the hoisting machine mounting auxiliary device according to the second embodiment.

[0027] Fig.14 Yes means Fig.13 A rear view of the state where the traction machine installation auxiliary device is installed on the support platform.

[0028] Fig.15 Yes means Fig.13 A three-dimensional view of a state in which the traction machine installation auxiliary device is installed on a support platform.

[0029] Fig.16 Yes means Fig.15 A three-dimensional view of the arm component in the first connecting mechanism portion.

[0030] Fig.17 Yes means Fig.15 A three-dimensional view of the arm component in the second connecting mechanism portion.

[0031] Description of symbols

[0032] 1: hoistway, 5: support platform, 7: installation hoist, 54: load support mounting member, 55: posture maintaining mounting member, 72: driving sheave, 83: connecting body, 84: connecting member, 85: arm member (connecting body), 521: first through hole (first support platform mounting hole), 531: second through hole (second support platform mounting hole), 732: first threaded hole (first hoisting machine mounting hole), 742: second threaded hole (second hoisting machine mounting hole), 831: support part, 832: ring part (suspension fixing part), 833: suspension part, 851: arm member body, 852: block piece. DETAILED DESCRIPTION

[0033] The method for implementing the object of the present disclosure is described with reference to the accompanying drawings. In each figure, the same or equivalent parts are marked with the same reference numerals, and repeated descriptions are appropriately simplified or omitted. In addition, the object of the present disclosure is not limited to the following embodiments, and any constituent element of the embodiment can be deformed or omitted without departing from the scope of the present disclosure.

[0034] Implementation method 1.

[0035] Figure 1 1 is a structural diagram of an elevator before modification according to Embodiment 1. In the figure, a car 2 and a counterweight 3 are suspended by a plurality of ropes 4 in a hoistway 1. Figure 1 In the figure, for simplicity, only one rope 4 is shown.

[0036] The car 2 includes a car body 21 and a pair of car suspending sheaves 22. The pair of car suspending sheaves 22 are provided at the lower portion of the car body 21.

[0037] The counterweight 3 has a counterweight body 31 and a counterweight suspension wheel 32. The counterweight suspension wheel 32 is arranged on the upper part of the counterweight body 31.

[0038] An upper beam 11 is fixed to the upper part of the hoistway 1. The upper beam 11 is provided with a car-side return pulley 12, a counterweight-side return pulley 13, a car-side rope end fixing device 14, and a counterweight-side rope end fixing device 15.

[0039] A support platform 5 is fixed to the bottom of the hoistway 1. A traction machine before the modification, that is, an existing traction machine 6 is mounted on the support platform 5. The existing traction machine 6 generates a driving force for moving the car 2 and the counterweight 3.

[0040] One end of each rope 4 is connected to the car-side rope end fixing device 14. The other end of each rope 4 is connected to the counterweight-side rope end fixing device 15. Each rope 4 is sequentially wound around a pair of car suspension wheels 22, a car-side return rope wheel 12, an existing traction machine 6, a counterweight-side return rope wheel 13, and a counterweight suspension wheel 32 from the car-side rope end fixing device 14, and reaches the counterweight-side rope end fixing device 15.

[0041] Figure 2 Yes means Figure 1 6. The existing hoisting machine 6 has a hoisting machine body 61, a driving sheave 62, a first mounting structure 63, and a second mounting structure 64.

[0042] In the existing hoisting machine 6, the direction along the axis of the hoisting machine body 61 is the axis direction of the existing hoisting machine 6. In addition, in the existing hoisting machine 6, a specific direction perpendicular to the axis direction of the existing hoisting machine 6 is the height direction of the existing hoisting machine 6. And, in the existing hoisting machine 6, a direction perpendicular to both the axis direction and the height direction of the existing hoisting machine 6 is the left-right direction of the existing hoisting machine 6. The existing hoisting machine 6 is mounted on the support 5 in such a manner that the axis direction and the left-right direction of the existing hoisting machine 6 are horizontal and the height direction of the existing hoisting machine 6 is consistent with the vertical direction.

[0043] The hoisting machine main body 61 has a motor. When power is supplied to the motor of the hoisting machine main body 61, the hoisting machine main body 61 generates a driving force.

[0044] The driving sheave 62 is rotatably provided on the hoisting machine body 61. When power is supplied to the motor of the hoisting machine body 61, the driving sheave 62 rotates relative to the hoisting machine body 61 about the axis of the hoisting machine body 61.

[0045] A plurality of grooves along the circumferential direction of the driving sheave 62 are provided on the outer periphery of the driving sheave 62. A plurality of ropes 4 are wound around the driving sheave 62 along the grooves of the driving sheave 62. As the driving sheave 62 rotates relative to the hoisting machine body 61, the car 2 and the counterweight 3 move in the vertical direction in the hoistway 1.

[0046] The first mounting structure 63 and the second mounting structure 64 are fixed to the hoisting machine body 61. The first mounting structure 63 and the second mounting structure 64 are arranged at the lower portion of the hoisting machine body 61 in the height direction of the existing hoisting machine 6.

[0047] The first mounting structure 63 and the second mounting structure 64 are arranged at positions separated from each other in the axial direction of the existing hoisting machine 6. The first mounting structure 63 is located closer to the driving sheave 62 than the second mounting structure 64 is.

[0048] The first mounting structure 63 has a pair of first mounting surfaces 631 formed along the height direction of the existing hoisting machine 6. The first mounting structure 63 is arranged so that the pair of first mounting surfaces 631 face outwards from each other in the left-right direction of the existing hoisting machine 6.

[0049] A plurality of first threaded holes 632 are provided on each first mounting surface 631. The plurality of first threaded holes 632 are provided on the first mounting surface 631 at intervals in the height direction of the existing hoisting machine 6. In the present embodiment, three first threaded holes 632 are provided on one first mounting surface 631. Therefore, in the present embodiment, six first threaded holes 632 are provided on the existing hoisting machine 6. The positions of the first threaded holes 632 in the axial direction of the existing hoisting machine 6 are all the same.

[0050] The second mounting structure 64 has a pair of second mounting surfaces 641 formed along the height direction of the existing hoisting machine 6. The second mounting structure 64 is arranged so that the pair of second mounting surfaces 641 face outwards from each other in the left-right direction of the existing hoisting machine 6.

[0051] A second threaded hole 642 is provided on each second mounting surface 641. In the present embodiment, one second threaded hole 642 is provided on one second mounting surface 641. Therefore, in the present embodiment, two second threaded holes 642 are provided on the existing hoisting machine 6. The positions of the second threaded holes 642 in the axial direction of the existing hoisting machine 6 are all the same.

[0052] Each first threaded hole 632 is located closer to the drive sheave 62 than each second threaded hole 642. In the existing hoisting machine 6, the distance from each first threaded hole 632 to each second threaded hole 642 in the axial direction of the existing hoisting machine 6 is determined as the existing hoisting machine installation pitch.

[0053] Figure 3 Yes means Figure 1 A three-dimensional view of the support platform 5. Figure 4 Yes means Figure 3 5 is a side view of the support platform 5. The support platform 5 is arranged at the bottom of the shaft 1 in such a manner that the height direction of the support platform 5 is consistent with the vertical direction. In the support platform 5, a specific direction perpendicular to the height direction of the support platform 5 is the width direction of the support platform 5. In addition, in the support platform 5, a direction perpendicular to both the height direction and the width direction of the support platform 5 is the depth direction of the support platform 5.

[0054] The support platform 5 has a pair of support plate portions 51. The pair of support plate portions 51 are opposed to each other in the width direction of the support platform 5. Each support plate portion 51 has a load supporting portion 52 and a posture retaining portion 53. The load supporting portion 52 and the posture retaining portion 53 are arranged in the depth direction of the support platform 5. In the present embodiment, one end portion of each support plate portion 51 in the depth direction of the support platform 5 is the load supporting portion 52, and the other end portion of each support plate portion 51 in the depth direction of the support platform 5 is the posture retaining portion 53. In addition, in the present embodiment, in each support plate portion 51, an opening portion 50 is provided between the load supporting portion 52 and the posture retaining portion 53.

[0055] A plurality of first through holes 521 are provided as first support platform mounting holes in each load support portion 52. The positions of the plurality of first through holes 521 in each load support portion 52 correspond to the positions of the plurality of first threaded holes 632 in the existing hoisting machine 6. The plurality of first through holes 521 are provided in each load support portion 52 at intervals from each other in the height direction of the support platform 5.

[0056] In this embodiment, three first through holes 521 are provided in one load support portion 52. That is, in this embodiment, six first through holes 521 are provided in the support platform 5. The positions of the first through holes 521 in the depth direction of the support platform 5 are all the same.

[0057] A second through hole 531 is provided as a second support stand mounting hole in each posture holding portion 53. The position of the second through hole 531 in each posture holding portion 53 corresponds to the position of the second screw hole 642 in the existing hoisting machine 6.

[0058] In the present embodiment, one second through hole 531 is provided in one posture holding portion 53. That is, in the present embodiment, two second through holes 531 are provided in the support platform 5. The positions of the second through holes 531 in the depth direction of the support platform 5 are all the same.

[0059] In the support platform 5, the distance from each first through hole 521 to each second through hole 531 in the depth direction of the support platform 5 is determined as the support platform installation pitch. The existing hoisting machine installation pitch is the same distance as the support platform installation pitch.

[0060] Figure 5 Yes means Figure 1 A perspective view of a state in which an existing traction machine 6 is installed on a support platform 5. Figure 6 Yes means Figure 5 A side view of a state in which an existing hoisting machine 6 is installed on a supporting platform 5. Figure 7 Yes means Figure 5 5. The existing hoisting machine 6 is mounted on the support platform 5 in a state where the first mounting structure 63 and the second mounting structure 64 are arranged between the pair of support plate portions 51.

[0061] Each first mounting surface 631 faces each load support portion 52 so that the position of each first threaded hole 632 is aligned with the position of each first through hole 521. Thus, each first threaded hole 632 overlaps with each first through hole 521 in the width direction of the support base 5.

[0062] The first mounting structure 63 is mounted to each load supporting portion 52 through a plurality of load supporting mounting members 54. In the present embodiment, the first mounting structure 63 is mounted to one load supporting portion 52 through three load supporting mounting members 54, and is mounted to the other load supporting portion 52 through three load supporting mounting members 54. That is, in the present embodiment, the existing hoisting machine 6 is mounted to the support platform 5 through six load supporting mounting members 54. In the present embodiment, bolts as fasteners are used as the load supporting mounting members 54.

[0063] Each load bearing fixture 54 is continuously inserted into the first through hole 521 and the first threaded hole 632 that overlap each other. In this embodiment, the load bearing fixture 54 passing through the first through hole 521 is screwed into the first threaded hole 632. Thus, the first mounting structure 63 is mounted to each load bearing portion 52.

[0064] Each second mounting surface 641 faces each posture holding portion 53 so that the position of each second threaded hole 642 is aligned with the position of each second through hole 531. Thus, each second threaded hole 642 overlaps with each second through hole 531 in the width direction of the support base 5.

[0065] The second mounting structure 64 is mounted to each posture holding portion 53 through a plurality of posture holding mounting members 55. In the present embodiment, the second mounting structure 64 is mounted to one posture holding portion 53 through one posture holding mounting member 55, and is mounted to the other posture holding portion 53 through one posture holding mounting member 55. That is, in the present embodiment, the existing hoisting machine 6 is mounted to the support platform 5 through two posture holding mounting members 55. In the present embodiment, bolts as fasteners are used as the posture holding mounting members 55.

[0066] Each posture retaining fixture 55 is continuously inserted into the second through hole 531 and the second threaded hole 642 that overlap each other. In this embodiment, the posture retaining fixture 55 that passes through the second through hole 531 is screwed into the second threaded hole 642. Thus, the second mounting structure 64 is mounted to each posture retaining portion 53.

[0067] like Figure 6 As shown, an upward load F1 generated by suspending the car 2 and the counterweight 3 is applied to the driving sheave 62 from the plurality of ropes 4. As a result, an upward load is applied to each load supporting portion 52 from the existing hoisting machine 6 via the plurality of load supporting fixtures 54. Therefore, a downward shear force F2 is applied from the load supporting portion 52 to each load supporting fixture 54.

[0068] On the other hand, a downward load F3 generated by the deadweight of the existing hoisting machine 6 is applied to each posture holding part 53 from the existing hoisting machine 6 via each posture holding fixture 55. As a result, an upward shear force F4 is applied from the posture holding part 53 to each posture holding fixture 55. The magnitude of the shear force F4 is smaller than the magnitude of the shear force F2.

[0069] When refitting an elevator, the existing hoisting machine 6 is replaced with a new installation hoisting machine due to aging of the existing hoisting machine 6. The type of the new installation hoisting machine may be different from that of the existing hoisting machine 6 due to the update of the manufacturing equipment for manufacturing the hoisting machine.

[0070] Next, a new installation hoisting machine replaced with the existing hoisting machine 6 will be described. Figure 8 1 is a perspective view showing the installation hoisting machine according to Embodiment 1. The installation hoisting machine 7 includes a hoisting machine body 71 , a drive sheave 72 , a first installation structural portion 73 , and a second installation structural portion 74 .

[0071] In the installation hoist 7, the direction along the axis of the hoist main body 71 is the axis direction of the installation hoist 7. In addition, in the installation hoist 7, a specific direction perpendicular to the axis direction of the installation hoist 7 is the height direction of the installation hoist 7. Moreover, in the installation hoist 7, the direction perpendicular to both the axis direction and the height direction of the installation hoist 7 is the left-right direction of the installation hoist 7. The installation hoist 7 is arranged so that the axis direction and the left-right direction of the installation hoist 7 are horizontal and the height direction of the installation hoist 7 is consistent with the vertical direction.

[0072] The axial dimension of the hoisting machine body 71 of the installation hoisting machine 7 is larger than that of the hoisting machine body 61 of the existing hoisting machine 6. The other structures of the hoisting machine body 71 of the installation hoisting machine 7 are the same as those of the hoisting machine body 61 of the existing hoisting machine 6.

[0073] The driving sheave 72 is rotatably provided on the hoisting machine body 71. By supplying power to the motor of the hoisting machine body 71, the driving sheave 72 rotates relative to the hoisting machine body 71 around the axis of the hoisting machine body 71. As the driving sheave 72 rotates relative to the hoisting machine body 71, the car 2 and the counterweight 3 move in the vertical direction in the hoistway 1. The structure of the driving sheave 72 in the installation hoisting machine 7 is the same as the structure of the driving sheave 62 in the existing hoisting machine 6.

[0074] The first mounting structure 73 and the second mounting structure 74 are fixed to the hoisting machine body 71. The first mounting structure 73 and the second mounting structure 74 are arranged at the lower portion of the hoisting machine body 71 in the height direction of the hoisting machine 7 for installation.

[0075] The first mounting structure 73 and the second mounting structure 74 are arranged at positions separated from each other in the axial direction of the installation hoisting machine 7. The first mounting structure 73 is located closer to the drive sheave 72 than the second mounting structure 74. The distance from the first mounting structure 73 to the second mounting structure 74 of the installation hoisting machine 7 is greater than the distance from the first mounting structure 63 to the second mounting structure 64 of the existing hoisting machine 6.

[0076] The structures of the first mounting structure 73 and the second mounting structure 74 are the same as the structures of the first mounting structure 63 and the second mounting structure 64 in the existing hoisting machine 6 .

[0077] Therefore, the first mounting structure 73 is provided with a pair of first mounting surfaces 731 along the height direction of the installation hoisting machine 7. The first mounting structure 73 is arranged so that the pair of first mounting surfaces 731 face outwards from each other in the left-right direction of the installation hoisting machine 7.

[0078] A plurality of first threaded holes 732 are provided as first hoisting machine mounting holes on each first mounting surface 731. The plurality of first threaded holes 732 are provided on the first mounting surface 731 at intervals in the height direction of the mounting hoisting machine 7. In the present embodiment, three first threaded holes 732 are provided on one first mounting surface 731. Therefore, in the present embodiment, six first threaded holes 732 are provided on the mounting hoisting machine 7. The positions of the first threaded holes 732 in the axial direction of the mounting hoisting machine 7 are all the same.

[0079] The second mounting structure 74 has a pair of second mounting surfaces 741 formed along the height direction of the mounting hoisting machine 7. The second mounting structure 74 is arranged so that the pair of second mounting surfaces 741 face outwards from each other in the left-right direction of the mounting hoisting machine 7.

[0080] A second threaded hole 742 is provided as a second hoisting machine mounting hole on each second mounting surface 741. In the present embodiment, one second threaded hole 742 is provided on one second mounting surface 741. Therefore, in the present embodiment, two second threaded holes 742 are provided on the mounting hoisting machine 7. The positions of the second threaded holes 742 in the axial direction of the mounting hoisting machine 7 are all the same.

[0081] Each first threaded hole 732 is located closer to the drive sheave 72 than each second threaded hole 742. In the installation hoist 7, the distance from each first threaded hole 732 to each second threaded hole 742 in the axial direction of the installation hoist 7 is determined as the installation hoist installation spacing. The installation hoist installation spacing is different from the support base installation spacing and the existing hoist installation spacing. In the present embodiment, the installation hoist installation spacing is larger than the support base installation spacing and the existing hoist installation spacing.

[0082] Fig. 9 It means in Figure 4 5. In the modified elevator, the installation hoisting machine 7 is mounted on the support platform 5. In the state where the installation hoisting machine 7 is mounted on the support platform 5, the first mounting structure 73 is arranged between the load supporting parts 52.

[0083] Each first mounting surface 731 faces each load support portion 52 so that the position of each first threaded hole 732 is aligned with the position of each first through hole 521. Thus, each first threaded hole 732 overlaps with each first through hole 521 in the width direction of the support base 5.

[0084] The first mounting structure 73 of the installation hoisting machine 7 is mounted to each load supporting part 52 through a plurality of load supporting fixtures 54, similarly to the first mounting structure 63 of the existing hoisting machine 6. Therefore, each load supporting fixture 54 is continuously inserted into the mutually overlapping first through hole 521 and first threaded hole 732. In the present embodiment, the load supporting fixture 54 passing through the first through hole 521 is screwed into the first threaded hole 732, whereby the first mounting structure 73 is mounted to each load supporting part 52.

[0085] On the other hand, when the installation hoisting machine 7 is mounted on the support platform 5, the second installation structure 74 is offset from the space between the pair of support plates 51. Therefore, the positions of the second threaded holes 742 are offset from the positions of the first through holes 531 in the depth direction of the support platform 5.

[0086] The second mounting structure 74 is connected to each posture holding portion 53 via the elevator hoisting machine mounting auxiliary device 8. Hereinafter, the elevator hoisting machine mounting auxiliary device 8 is simply referred to as "the hoisting machine mounting auxiliary device 8".

[0087] Fig.10 Yes means Fig. 9 A rear view of a state in which the hoisting machine mounting auxiliary device 8 is mounted on the supporting platform 5. Fig.11 Yes means Fig. 9 A perspective view of a state where the traction machine installation auxiliary device 8 is installed on the support platform 5. Fig.10 and Fig.11 , for simplicity, the illustration of the installation hoisting machine 7 is omitted. The hoisting machine installation auxiliary device 8 has a first connection mechanism portion 81 and a second connection mechanism portion 82. The first connection mechanism portion 81 is arranged on one of the two sides in the left-right direction of the installation hoisting machine 7, and the second connection mechanism portion 82 is arranged on the other side. The first connection mechanism portion 81 connects the second installation structure portion 74 to the posture holding portion 53 of the support plate portion 51 on one side. The second connection mechanism portion 82 connects the second installation structure portion 74 to the posture holding portion 53 of the support plate portion 51 on the other side.

[0088] like Fig.11 As shown, the first connection mechanism 81 and the second connection mechanism 82 each include a connection body 83 and a connector 84. The connection body 83 includes a support portion 831, a ring portion 832, and a suspension portion 833.

[0089] The support 831 is attached to the posture holding part 53 by the posture holding fixture 55 inserted into the second through hole 531. The support 831 is attached to the posture holding part 53 to be arranged along the height direction of the support platform 5. The support 831 may be in the shape of a strip or a rod.

[0090] like Fig.10 As shown, a support through hole 834 is provided at the lower end of the support 831. The support 831 is configured so that the position of the support through hole 834 is aligned with the position of the second through hole 531.

[0091] The posture retaining fixture 55 is inserted not only into the second through hole 531 but also into the support portion through hole 834. In this embodiment, a nut is mounted on the posture retaining fixture 55 which is a bolt, and the support portion 831 and the posture retaining portion 53 are fastened between the bolt and the nut, whereby the support portion 831 is mounted on the posture retaining portion 53.

[0092] Thus, the support column 831 of the first connection mechanism 81 is attached to one of the posture holding parts 53 by the posture holding attachment 55 inserted into one of the second through holes 531 provided in the posture holding parts 53. In addition, the support column 831 of the second connection mechanism 82 is attached to the other of the posture holding parts 53 by the posture holding attachment 55 inserted into the other of the second through holes 531 provided in the posture holding parts 53.

[0093] The ring portion 832 is provided as a suspension fixing portion at the upper end portion of the support portion 831. Therefore, the ring portion 832 is provided at the support portion 831 at a position higher than the second through hole 531.

[0094] like Fig. 9 and Fig.11 As shown, the suspension part 833 is a rod extending from the ring part 832 to the second threaded hole 742. The suspension part 833 has a first connection end 833a and a second connection end 833b. The first connection end 833a is connected to the ring part 832. The second connection end 833b is connected to the second mounting structure part 74 through the connector 84.

[0095] The second connection end portion 833 b is provided with a suspension portion through hole 835 . The second connection end portion 833 b is configured so that the position of the suspension portion through hole 835 is aligned with the position of the second threaded hole 742 .

[0096] The connecting member 84 connects the hanging part 833 and the second mounting structure 64 while being continuously inserted into the hanging part through hole 835 and the second threaded hole 742. In the present embodiment, a bolt having the same size and shape as the posture retaining mounting member 55 is used as the connecting member 84. In the present embodiment, the connecting member 84 passing through the hanging part through hole 835 is screwed into the second threaded hole 742.

[0097] Thus, the connector 84 of the first connection mechanism 81 is inserted into one of the second threaded holes 742 provided in each second mounting surface 741, and the hanging portion 833 of the first connection mechanism 81 is connected to the second mounting structure 74. In addition, the connector 84 of the second connection mechanism 82 is inserted into the other of the second threaded holes 742 provided in each second mounting surface 741, and the hanging portion 833 of the second connection mechanism 82 is connected to the second mounting structure 74.

[0098] As with the existing traction machine 6, Fig. 9 As shown, the driving sheave 72 is applied with an upward load F1 generated by suspending the car 2 and the counterweight 3 respectively from the plurality of ropes 4. As a result, an upward load is applied to each load supporting portion 52 from the installation hoisting machine 7 via the plurality of load supporting fixtures 54. Therefore, a downward shear force F2 is applied from the load supporting portion 52 to each load supporting fixture 54.

[0099] On the other hand, a downward load F5 generated by the deadweight of the installation hoisting machine 7 is applied to each posture holding portion 53 from the installation hoisting machine 7 via the hoisting machine installation auxiliary device 8 and the plurality of posture holding fixtures 55. As a result, an upward shear force F6 is applied from the posture holding portion 53 to each posture holding fixture 55. The magnitude of the shear force F6 is smaller than the magnitude of the shear force F2.

[0100] The first connection mechanism 81 and the second connection mechanism 82 each bear a downward load F5 generated by the deadweight of the installation hoisting machine 7. The suspension parts 833 of the first connection mechanism 81 and the second connection mechanism 82 suspend the installation hoisting machine 7 while being connected to the second installation structure 74 via the connector 84. Thus, the posture of the installation hoisting machine 7 is maintained.

[0101] Next, a method of remodeling an elevator by replacing the existing hoisting machine 6 with the installation hoisting machine 7 to remodel the elevator will be described. Fig.121 is a flowchart showing the elevator modification method of Embodiment 1. The elevator modification method includes a removal step S1, a hoisting machine configuration step S2, a hoisting machine installation step S3, a connection body installation step S4, and a connection step S5. In this embodiment, when the existing hoisting machine 6 is replaced with the installation hoisting machine 7, the steps are performed in the order of the removal step S1, the hoisting machine configuration step S2, the hoisting machine installation step S3, the connection body installation step S4, and the connection step S5.

[0102] <Removal process S1>

[0103] In the removal step S1, the existing hoisting machine 6 is removed from the support platform 5. At this time, the load supporting fixtures 54 and the posture retaining fixtures 55 that mount the existing hoisting machine 6 to the support platform 5 are removed from the support platform 5. The load supporting fixtures 54 and the posture retaining fixtures 55 remain on the support platform 5.

[0104] <Traction machine arrangement process S2>

[0105] After the removal step S1, the hoisting machine arrangement step S2 is performed. In the hoisting machine arrangement step S2, the installation hoisting machine 7 is arranged on the support platform 5 in a state where the positions of the first threaded holes 732 of the installation hoisting machine 7 are aligned with the positions of the first through holes 521 of the support platform 5. At this time, since the installation hoisting machine installation pitch is larger than the support platform installation pitch, the positions of the second threaded holes 742 are deviated from the positions of the second through holes 531 in the depth direction of the support platform 5.

[0106] <Traction machine installation process S3>

[0107] After the hoisting machine configuration step S2, the hoisting machine installation step S3 is performed. In the hoisting machine installation step S3, the installation hoisting machine 7 is installed on the support platform 5 by inserting the load supporting fixtures 54 into the first through holes 521 and the first screw holes 732 in succession. At this time, the installation hoisting machine 7 is installed on the support platform 5 by the load supporting fixtures 54 that have been used to install the existing hoisting machine 6 on the support platform 5. In the present embodiment, the first installation structure 73 of the installation hoisting machine 7 is installed on the support platform 5 by screwing the load supporting fixtures 54 that pass through the first through holes 521 into the first screw holes 732.

[0108] <Connection body installation step S4>

[0109] After the hoisting machine installation step S3, the connection body installation step S4 is performed. In the connection body installation step S4, the connection bodies 83 of the first connection mechanism part 81 and the second connection mechanism part 82 are installed on the support platform 5 by the posture maintaining mounting parts 55 inserted into the second through holes 531. At this time, the connection bodies 83 are installed on the posture maintaining parts 53 by the posture maintaining mounting parts 55 that have installed the existing hoisting machine 6 on the support platform 5. The support part 831 of the connection body 83 is installed on the posture maintaining part 53.

[0110] In the present embodiment, the lower end of the support column 831 is fastened to the posture holding portion 53 by the posture holding fixture 55 to which a nut is attached, thereby attaching the support column 831 to the posture holding portion 53. The support column 831 in each connecting body 83 is arranged along the height direction of the support platform 5. Thus, in each of the first connecting mechanism portion 81 and the second connecting mechanism portion 82, the position of the ring portion 832 becomes higher than each second through hole 531.

[0111] <Connection Step S5>

[0112] After the connection body installation process S4, the connection process S5 is performed. In the connection process S5, the connection bodies 83 of the first connection mechanism part 81 and the second connection mechanism part 82 are connected to the second mounting structure part 74 of the installation hoisting machine 7 by the connection parts 84 inserted into the second threaded holes 742. The suspension parts 833 of each connection body 83 are connected to the second mounting structure part 74. In the present embodiment, the connection parts 84 passing through the suspension part through holes 835 of the suspension parts 833 are screwed into the second threaded holes 742, thereby connecting the suspension parts 833 to the second mounting structure part 74 of the installation hoisting machine 7. As a result, the second mounting structure part 74 of the installation hoisting machine 7 is suspended from the suspension parts 833 of the first connection mechanism part 81 and the second connection mechanism part 82. In this way, the operation of replacing the existing hoisting machine 6 with the installation hoisting machine 7 is completed.

[0113] In such a hoisting machine installation auxiliary device 8, the connection body 83 is attached to the support platform 5 by the posture retaining attachment 55 inserted into the second through hole 531 of the first through hole 521 and the second through hole 531 of the support platform 5. In addition, the connection body 83 is connected to the installation hoisting machine 7 by the connection member 84 inserted into the second threaded hole 742 of the first threaded hole 732 and the second threaded hole 742 of the installation hoisting machine 7. Therefore, even if the support platform installation pitch and the installation hoisting machine installation pitch are different, the installation hoisting machine 7 can be connected to the support platform 5 via the hoisting machine installation auxiliary device 8. As a result, there is no need to replace the support platform, and the existing support platform 5 can be used as it is. Therefore, it is possible to reduce the labor and time of the work of replacing the hoisting machine.

[0114] In addition, the connecting body 83 includes a support portion 831, a ring portion 832, and a hanging portion 833. The support portion 831 is mounted on the support platform 5 through the posture retaining mounting member 55. The ring portion 832 is provided on the support portion 831 at a position higher than the second through hole 531. The hanging portion 833 reaches the second threaded hole 742 from the ring portion 832, and is connected to the installation hoist 7 through the connecting member 84. Therefore, even if the distance from the second through hole 531 to the second threaded hole 742 changes, the hanging portion 833 can be connected to the installation hoist 7 simply by adjusting the inclination angle of the hanging portion 833. Thus, even if a plurality of installation hoists 7 having installation hoists with different installation pitches can be easily connected to the support platform 5 respectively via the hoist mounting auxiliary device 8.

[0115] In addition, the suspension part 833 for suspending the installation hoisting machine 7 is a rod. Therefore, it is possible to prevent the suspension part 833 from being loosened. As a result, it is possible to suppress not only the downward displacement of the second installation structure part 74 of the installation hoisting machine 7, but also the upward displacement of the second installation structure part 74, and the posture of the installation hoisting machine 7 can be maintained more reliably.

[0116] In addition, in such an elevator modification method, in the traction machine installation step S3, the installation traction machine 7 is installed on the support platform 5 by the load support fixture 54 inserted into the first through hole 521 and the first screw hole 732. In addition, in the connection body installation step S4, the connection body 83 is installed on the support platform 5 by the posture retention fixture 55 inserted into the second through hole 531 of the support platform 5. And in the connection step S5, the connection body 83 is connected to the installation traction machine 7 by the connection member 84 inserted into the second screw hole 742 of the installation traction machine 7. Therefore, even if the support platform installation pitch and the installation traction machine installation pitch are different, the installation traction machine 7 can be connected to the support platform 5. Therefore, there is no need to replace the support platform, and the existing support platform 5 can be used as it is. Therefore, it is possible to reduce the labor and time of the operation of replacing the traction machine.

[0117] In the first embodiment, the suspension part 833 in the connecting body 83 is a rod. However, the suspension part 833 is not limited to a rod. The suspension part 833 may be, for example, a wire. Even if the suspension part 833 is a wire, the second mounting structure part 74 of the installation hoisting machine 7 can be suspended, and the posture of the installation hoisting machine 7 can be maintained.

[0118] In the first embodiment, the length of the hanging portion 833 in the connecting body 83 is fixed. However, the length of the hanging portion 833 may be adjustable. In this way, even if the distance from the second through hole 531 to the second threaded hole 742 changes, the hanging portion 833 can be more easily connected to the mounting hoisting machine 7 by adjusting the length of the hanging portion 833.

[0119] In the first embodiment, the posture retaining fixture 55 is a bolt. However, a rod-shaped member may be used as the posture retaining fixture 55. In this way, the support column 831 of the connecting body 83 can be mounted on the support platform 5 by the posture retaining fixture 55 inserted into the second through hole 531 and the support column through hole 834. In this case, split pins for preventing the posture retaining fixture 55 from coming off are mounted on both ends.

[0120] In the first embodiment, the connector 84 is a bolt, and the second threaded hole 742 into which the connector 84 is screwed is the second hoisting machine mounting hole of the mounting hoisting machine 7. However, the second hoisting machine mounting hole of the mounting hoisting machine 7 may not be a threaded hole. For example, the second hoisting machine mounting hole of the mounting hoisting machine 7 may be a round hole, and the rod-shaped member inserted into the round hole may be the connector 84. In this way, the suspension part 833 of the connecting body 83 can be connected to the second mounting structure part 74 of the mounting hoisting machine 7 by the connector 84 inserted into the suspension part through hole 835 and the second hoisting machine mounting hole. In this case, the split pins for preventing the connector 84 from coming off are attached to both ends of the connector 84.

[0121] Implementation method 2.

[0122] Fig.13 This is a side view of the main parts showing a state where the installation hoisting machine 7 is mounted on the support stand 5 using the hoisting machine mounting auxiliary device 8 according to the second embodiment. Fig.14 Yes means Fig.13 A rear view of a state in which the hoisting machine mounting auxiliary device 8 is mounted on the supporting platform 5. Fig.15 Yes means Fig.13 A perspective view of a state where the traction machine installation auxiliary device 8 is installed on the support platform 5. Fig.14 and Fig.15 In the figure, the hoisting machine 7 for installation is omitted for simplicity. The first connection mechanism part 81 and the second connection mechanism part 82 in the hoisting machine installation auxiliary device 8 each include an arm member 85, a connector 86, and a plurality of fixing members 87.

[0123] The arm member 85 is mounted as a connection body to the posture holding portion 53 of the support platform 5 by the posture holding mounting member 55 inserted into the second through hole 531. The arm member 85 is mounted to the posture holding portion 53, and is extended from the second through hole 531 to the second threaded hole 742 of the mounting hoisting machine 7 along the depth direction of the support platform 5. In the present embodiment, a part of the arm member 85 protrudes from the support platform 5 in the direction opposite to the first through hole 521.

[0124] Here, Fig.16 Yes means Fig.15 81 is a perspective view of the arm member 85 in the first connecting mechanism unit 81. Fig.17 Yes means Fig.15 FIG. 8 is a perspective view of an arm member 85 in the second connection mechanism section 82 . The arm member 85 of each of the first connection mechanism section 81 and the second connection mechanism section 82 includes an arm member main body 851 and a block piece 852 .

[0125] The arm member main body 851 has a plate shape. The arm member main body 851 has an arm facing portion 851a. In the present embodiment, one end portion of the arm member main body 851 serves as the arm facing portion 851a.

[0126] The block piece 852 is a plate-shaped piece provided on the arm facing portion 851 a . The block piece 852 overlaps with the arm facing portion 851 a in the thickness direction of the arm member main body 851 .

[0127] The arm member 85 is provided with an arm member through hole 853, a connecting through hole 854, and a plurality of fixing through holes 855. The arm member through hole 853, the connecting through hole 854, and the fixing through holes 855 penetrate the arm member 85 in the thickness direction of the arm member body 851. In addition, the arm member through hole 853, the connecting through hole 854, and the plurality of fixing through holes 855 are provided in the arm member 85 at intervals from each other in the longitudinal direction of the arm member 85.

[0128] The arm member through hole 853 and each fixing through hole 855 are provided in the arm member main body 851 avoiding the block piece 852. The connecting through hole 854 continuously penetrates the arm member main body 851 and the block piece 852.

[0129] The arm member through hole 853 is located closer to the connecting through hole 854 than the fixing through holes 855. Thus, the arm member through hole 853 is located between the connecting through hole 854 and the fixing through holes 855 in the longitudinal direction of the arm member 85.

[0130] The arm member 85 is provided with a plurality of fixing through holes 855 spaced apart from each other in the longitudinal direction of the arm member 85. In the present embodiment, the arm member 85 is provided with two fixing through holes 855.

[0131] like Fig.14 As shown, the arm member 85 is mounted to the posture holding portion 53 by the posture holding mounting member 55 continuously inserted into the arm member through hole 853 and the second through hole 531. In this embodiment, a nut is mounted on the posture holding mounting member 55 as a bolt, and the arm member 85 and the posture holding portion 53 are fastened between the bolt and the nut, thereby mounting the arm member 85 on the posture holding portion 53.

[0132] Thus, the arm member 85 of the first connection mechanism part 81 is attached to one of the posture holding parts 53 by the posture holding attachment member 55 inserted into one of the second through holes 531 provided in each of the posture holding parts 53. In addition, the arm member 85 of the second connection mechanism part 82 is attached to the other of the posture holding parts 53 by the posture holding attachment member 55 inserted into the other of the second through holes 531 provided in each of the posture holding parts 53.

[0133] The arm member 85 is mounted on the posture holding portion 53 in such a manner that the thickness direction of the arm member main body 851 coincides with the width direction of the support platform 5. In addition, the arm member 85 is mounted on the posture holding portion 53 in such a manner that the arm facing portion 851a protrudes from the support platform 5 in the direction opposite to the first through hole 521. Thus, the arm facing portion 851a deviates from the support platform 5 and faces the second mounting surface 741 of the mounting hoisting machine 7.

[0134] The arm member 85 is configured so that the block piece 852 faces the second mounting structure 74 for mounting the hoisting machine 7. Thus, the block piece 852 is interposed between the arm opposing portion 851a and the second screw hole 742. The block piece 852 overlaps the second mounting surface 741. The arm member 85 is configured so that the position of the connecting through hole 854 is aligned with the position of the second screw hole 742.

[0135] The connector 86 connects the arm member 85 to the second mounting structure 74 of the installation hoisting machine 7. Therefore, the connector 86 connects the arm member 85 to the installation hoisting machine 7 at a position farther from the first through holes 521 than the second through holes 531.

[0136] The connecting member 86 connects the arm member 85 to the second mounting structure 74 while being continuously inserted into the connecting through hole 854 and the second threaded hole 742. In the present embodiment, a bolt having the same size and shape as the posture retaining mounting member 55 is used as the connecting member 86. In the present embodiment, the connecting member 86 passing through the connecting through hole 854 is screwed into the second threaded hole 742.

[0137] Thus, the connector 86 of the first connection mechanism 81 is inserted into one of the second threaded holes 742 provided in each second mounting surface 741, and the arm member 85 of the first connection mechanism 81 is connected to the second mounting structure 74. In addition, the connector 86 of the second connection mechanism 82 is inserted into the other of the second threaded holes 742 provided in each second mounting surface 741, and the arm member 85 of the second connection mechanism 82 is connected to the second mounting structure 74.

[0138] Each fixing member 87 fixes the arm member 85 to the support platform 5 at a position away from the second through hole 531. In the present embodiment, each fixing member 87 fixes the arm member 85 to the support platform 5 at a position closer to each first through hole 521 than the second through hole 531.

[0139] The posture holding portion 53 of the support platform 5 is provided with a plurality of additional holes (not shown) corresponding to the fixing through holes 855. The positional relationship between the second through hole 531 and the additional holes is the same as the positional relationship between the arm member through hole 853 and the fixing through holes 855.

[0140] The arm member 85 is arranged so that the position of each fixing through hole 855 is aligned with the position of each additional hole. Each fixing member 87 fixes the arm member 85 to the posture holding portion 53 of the support platform 5 while being continuously inserted into the fixing through hole 855 and the additional hole. Each fixing member 87 has a bolt and a nut. Each fixing member 87 fixes the arm member 85 to the posture holding portion 53 by fastening the arm member body 851 and the posture holding portion 53.

[0141] Each fixing member 87 of the first connection mechanism 81 fixes the arm member 85 of the first connection mechanism 81 to one posture holding portion 53. Each fixing member 87 of the second connection mechanism 82 fixes the arm member 85 of the second connection mechanism 82 to the other posture holding portion 53.

[0142] In each of the first connecting mechanism portion 81 and the second connecting mechanism portion 82, Fig.13 As shown, the downward load generated by the deadweight of the installation hoist 7 is applied from the installation hoist 7 to the arm member 85 via the connector 86. Thus, in each of the first connection mechanism 81 and the second connection mechanism 82, a posture holding moment M1 in the first direction centered on the posture holding mount 55 is applied to the arm member 85.

[0143] In addition, in each of the first connection mechanism section 81 and the second connection mechanism section 82, each fixing member 87 fixes the arm member 85 to the support platform 5 at a position on the opposite side of the posture holding fixture 55 and the connecting member 86. Thus, in each of the first connection mechanism section 81 and the second connection mechanism section 82, the second direction dispersion moment M2 centered on the posture holding fixture 55 is applied to the arm member 85 as a moment to offset the posture holding moment M1. The other structures are the same as those in the first embodiment.

[0144] Next, a modification method of an elevator in which the existing hoisting machine 6 is replaced with the installation hoisting machine 7 is described. In this embodiment, the modification method of the elevator is also the same as that in the first embodiment, and includes a removal step S1, a hoisting machine configuration step S2, a hoisting machine installation step S3, a connection body installation step S4, and a connection step S5. When the existing hoisting machine 6 is replaced with the installation hoisting machine 7, the steps are performed in the order of the removal step S1, the hoisting machine configuration step S2, the hoisting machine installation step S3, the connection body installation step S4, and the connection step S5.

[0145] The removal step S1 , the hoisting machine placement step S2 , and the hoisting machine installation step S3 are the same as those in the first embodiment.

[0146] In the connection body installation process S4, the arm members 85 of the first connection mechanism part 81 and the second connection mechanism part 82 are installed on the support platform 5 by the posture maintaining mounting parts 55 inserted into the second through holes 531. At this time, the arm members 85 are installed on the posture maintaining parts 53 by the posture maintaining mounting parts 55 that have installed the existing traction machine 6 on the support platform 5. In the present embodiment, the arm member main body 851 is fastened to the posture maintaining part 53 by the posture maintaining mounting parts 55 equipped with nuts, thereby installing the arm member 85 on the posture maintaining part 53.

[0147] In addition, in the present embodiment, in the connection body installation process S4, the arm member 85 of each of the first connection mechanism part 81 and the second connection mechanism part 82 is fixed to the support platform 5 by each fixing member 87. When the arm member 85 is fixed to the support platform 5 by each fixing member 87, a plurality of additional holes corresponding to each fixing through hole 855 of the arm member 85 are formed in the posture holding part 53. The formation of each additional hole is performed by processing the posture holding part 53 with a drill tool or the like. The position of each additional hole is a position overlapping with the position of each fixing through hole 855. Thereafter, the bolt of the fixing member 87 is continuously inserted into the fixing through hole 855 and the additional hole, and the arm member main body 851 and the posture holding part 53 are fastened between the bolt of the fixing member 87 and the nut of the fixing member 87. In this way, the arm member 85 is fixed to the posture holding part 53 by each fixing member 87.

[0148] In the connection body installation step S4, the position of the connection through hole 854 is aligned with the position of the second threaded hole 742 of the installation traction machine 7, and the arm member 85 of each of the first connection mechanism part 81 and the second connection mechanism part 82 is installed on the support platform 5. At this time, in each of the first connection mechanism part 81 and the second connection mechanism part 82, the arm member 85 is arranged so that the block piece 852 faces the second installation surface 741 of the second installation structure part 74.

[0149] In the connection step S5, the arm members 85 of the first connection mechanism section 81 and the second connection mechanism section 82 are connected to the second mounting structure section 74 of the installation hoisting machine 7 by the connectors 86 inserted into the second screw holes 742. In the present embodiment, the arm member 85 is connected to the second mounting structure section 74 of the installation hoisting machine 7 by screwing the connector 86 passing through the connection through hole 854 of the arm member 85 into the second screw hole 742. As a result, the second mounting structure section 74 of the installation hoisting machine 7 is held by the arm members 85 of the first connection mechanism section 81 and the second connection mechanism section 82. In this way, the operation of replacing the existing hoisting machine 6 with the installation hoisting machine 7 is completed.

[0150] In such a hoisting machine installation auxiliary device 8, the arm member 85 extending from the second through hole 531 of the support platform 5 to the second screw hole 742 of the installation hoisting machine 7 is mounted on the support platform 5 as a connecting body. Therefore, even if the support platform installation pitch and the installation hoisting machine installation pitch are different, the installation hoisting machine 7 can be connected to the support platform 5 via the hoisting machine installation auxiliary device 8. In addition, the space for arranging the arm member 85 can be reduced, and the handling of the arm member 85 can be made easy. As a result, the labor and time of the operation of replacing the hoisting machine can be reduced.

[0151] In addition, the arm member 85 has a plate-shaped arm member main body 851 and a block piece 852 provided on the arm member main body 851. The block piece 852 overlaps with the arm member main body 851 in the thickness direction of the arm member main body 851 and is interposed between the arm member main body 851 and the second threaded hole 742. Therefore, the block piece 852 can be used to fill the gap generated between the plate-shaped arm member main body 851 and the installation traction machine 7. As a result, the arm member 85 can be connected to the installation traction machine 7 more reliably and more firmly.

[0152] In addition, the fixing member 87 fixes the arm member 85 to the support platform 5 at a position away from the second through hole 531 of the support platform 5. Therefore, the arm member 85 can be prevented from rotating around the posture-maintaining mounting member 55 due to the load applied to the arm member 85 from the mounting hoist 7 by the fixing member 87. As a result, the posture of the mounting hoist 7 can be more reliably maintained.

[0153] In the second embodiment, one arm member 85 is fixed to the support platform 5 by two fixings 87. However, the number of fixings 87 to fix one arm member 85 is not limited to two. Therefore, the number of fixings 87 to fix one arm member 85 may be one or three or more. In addition, if the arm member 85 does not move relative to the support platform 5 due to the load applied to the arm member 85 from the installation hoist 7, the fixings 87 may not be provided.

[0154] In the second embodiment, the block piece 852 is interposed between the arm member body 851 and the second screw hole 742 of the installation hoisting machine 7. However, if no gap is generated between the arm member body 851 and the installation hoisting machine 7, the block piece 852 may not be provided.

[0155] In the second embodiment, the posture retaining fixture 55 is a bolt. However, a rod-shaped member may be used as the posture retaining fixture 55. In this way, the arm member 85 can be mounted on the support platform 5 by the posture retaining fixture 55 inserted into the second through hole 531 and the arm member through hole 853. In this case, split pins for preventing the posture retaining fixture 55 from coming off are mounted on both ends.

[0156] In the second embodiment, the connector 86 is a bolt, and the second threaded hole 742 into which the connector 86 is screwed is the second hoisting machine mounting hole of the mounting hoisting machine 7. However, the second hoisting machine mounting hole of the mounting hoisting machine 7 may not be a threaded hole. For example, the second hoisting machine mounting hole of the mounting hoisting machine 7 may be a round hole, and the rod-shaped member inserted into the round hole may be the connector 86. In this way, the arm member 85 can be connected to the second mounting structure 74 of the mounting hoisting machine 7 by the connector 86 inserted into the second through hole 531 and the second hoisting machine mounting hole. In this case, the split pins for preventing the connector 86 from coming off are attached to both ends of the connector 86.

[0157] In addition, in each of the above-mentioned embodiments, the hoisting machine installation auxiliary device 8 has the first connection mechanism portion 81 and the second connection mechanism portion 82. However, as long as the posture of the installation hoisting machine 7 can be maintained, it is not necessary to have either the first connection mechanism portion 81 or the second connection mechanism portion 82. That is, the hoisting machine installation auxiliary device 8 only needs to have at least one of the first connection mechanism portion 81 and the second connection mechanism portion 82.

[0158] In each of the above embodiments, the number of the first through holes 521 provided in one support plate portion 51 is three. However, the number of the first through holes 521 provided in one support plate portion 51 may be one, two, or four or more.

[0159] In addition, in each of the above-mentioned embodiments, the load supporting fixture 54 is a bolt, and the first threaded hole 732 into which the load supporting fixture 54 is screwed is the first hoisting machine mounting hole of the mounting hoisting machine 7. However, the first hoisting machine mounting hole of the mounting hoisting machine 7 may not be a threaded hole. For example, the first hoisting machine mounting hole of the mounting hoisting machine 7 may be a round hole, and the rod-shaped member inserted into the round hole may be the load supporting fixture 54. In this way, the mounting hoisting machine 7 can be mounted on the support platform 5 by inserting the load supporting fixture 54 into the first through hole 531 and the first hoisting machine mounting hole. In this case, the split pins for preventing the load supporting fixture 54 from coming off are mounted on both ends.

[0160] In addition, in each of the above-mentioned embodiments, the installation pitch of the installation hoist is larger than the installation pitch of the support platform. However, the installation pitch of the installation hoist may be smaller than the installation pitch of the support platform. In this case, for example, the connecting body is connected to the second installation structure portion 74 of the installation hoist 7 by a connector through the opening portion 50 of each support plate portion 51 provided on the support platform 5. In this way, the installation hoist 7 can also be connected to the support platform 5 via the hoist installation auxiliary device 8. Therefore, the existing support platform 5 can be directly used, and the labor and time of the operation of replacing the hoist can be reduced.

[0161] In addition, in each of the above-mentioned embodiments, the connection body installation step S4 is performed after the hoisting machine installation step S3. However, the connection body installation step S4 can be performed at any time as long as it is after the removal step S1. Therefore, the connection body installation step S4 can be performed after the removal step S1 and before the hoisting machine configuration step S2, or after the hoisting machine configuration step S2 and before the hoisting machine installation step S3.

[0162] In each of the above-mentioned embodiments, the connection step S5 is performed after the connection body installation step S4. However, the connection step S5 can be performed at any time as long as the installation hoisting machine 7 is prepared. Therefore, the connection step S5 can be performed before the removal step S1, or after the removal step S1 and before the hoisting machine configuration step S2. In addition, the connection step S5 can be performed after the hoisting machine configuration step S2 and before the hoisting machine installation step S3, or after the hoisting machine installation step S3 and before the connection body installation step S4.

[0163] In addition, in each of the above-mentioned embodiments, in the hoisting machine installation step S3, the installation hoisting machine 7 is installed on the support platform 5 by means of the load supporting fixtures 54 that have previously installed the existing hoisting machine 6 on the support platform 5. However, the load supporting fixtures 54 that install the installation hoisting machine 7 on the support platform 5 are not limited to the fixtures that have previously installed the existing hoisting machine 6 on the support platform 5.

[0164] In addition, in each of the above-mentioned embodiments, in the connection body installation step S4, the connection body is installed on the support platform 5 by each posture-maintaining mounting member 55 that has previously installed the existing hoisting machine 6 on the support platform 5. However, the posture-maintaining mounting member 55 that has previously installed the connection body on the support platform 5 is not limited to the mounting member that has previously installed the existing hoisting machine 6 on the support platform 5.

[0165] The above-mentioned structure shown in the above-mentioned embodiment is an example of the content of this disclosure. The embodiment can be combined with other well-known technologies. Part of the structure of the embodiment can be omitted or changed within the scope of not departing from the gist of this disclosure.

Claims

1. An elevator traction machine installation auxiliary device, comprising: a connecting body mounted on a support platform provided at the bottom of the hoistway by means of a posture-maintaining mounting member, wherein the posture-maintaining mounting member is inserted into the second support platform mounting hole of the first support platform mounting hole and the second support platform mounting hole of the support platform; and a connecting member which is inserted into the second hoisting machine mounting hole of the first hoisting machine mounting hole and the second hoisting machine mounting hole for mounting the hoisting machine, and connects the connection body to the mounting hoisting machine, The distance from the first hoisting machine mounting hole to the second hoisting machine mounting hole is different from the distance from the first support platform mounting hole to the second support platform mounting hole. The first hoisting machine mounting hole is located closer to the drive sheave of the mounting hoisting machine than the second hoisting machine mounting hole. The installation hoisting machine is mounted on the support platform via a load supporting mounting member inserted into the first support platform mounting hole and the first hoisting machine mounting hole.

2. The elevator traction machine installation auxiliary device according to claim 1, wherein: The connecting body comprises: a support portion, which is mounted on the support platform via the posture maintaining mounting member; a suspension fixing portion, which is provided on the support portion at a position higher than the second support platform mounting hole; and a suspension portion, which reaches the second hoist mounting hole from the suspension fixing portion and suspends the installation hoist in a state of being connected to the installation hoist via the connecting member.

3. The elevator traction machine installation auxiliary device according to claim 2, wherein: The suspension part is a wire or a rod.

4. The elevator traction machine installation auxiliary device according to claim 2 or 3, wherein: The length of the suspension portion is adjustable.

5. The elevator traction machine installation auxiliary device according to claim 1, wherein: The connecting body is an arm member that is mounted on the support platform using the posture-maintaining fixture and is arranged to extend from the second support platform mounting hole toward the second hoisting machine mounting hole.

6. The elevator traction machine installation auxiliary device according to claim 5, wherein: The arm member includes: a plate-shaped arm member body mounted on the support platform; and a block piece, which is provided on the arm member body, The block piece overlaps the arm member main body in the thickness direction of the arm member main body and is interposed between the arm member main body and the second hoisting machine mounting hole.

7. The elevator traction machine installation auxiliary device according to claim 5 or 6, wherein: The elevator hoisting machine installation auxiliary device further comprises a fixing member for fixing the arm member to the support platform. The fixing member fixes the arm member to the support platform at a position away from the second support platform mounting hole.

8. A method for modifying an elevator, comprising: A removal process is to remove the existing traction machine from the support platform provided at the bottom of the hoistway; a hoisting machine arranging step of arranging the installation hoisting machine on the support platform after the removal step, in a state where the position of the first hoisting machine mounting hole and the second hoisting machine mounting hole of the installation hoisting machine are aligned with the position of the first support platform mounting hole of the support platform; a hoisting machine installation step of installing the installation hoisting machine on the support platform by inserting a load support mounting member into the first support platform mounting hole and the first hoisting machine mounting hole after the hoisting machine placement step; a connection body installation step of installing the connection body on the support platform by inserting a posture-maintaining installation member into a second support platform installation hole of the support platform after the removal step; as well as a connecting step of connecting the connection body to the mounting hoisting machine by inserting a connector into the mounting hole of the second hoisting machine, The distance from the first hoisting machine mounting hole to the second hoisting machine mounting hole is different from the distance from the first support platform mounting hole to the second support platform mounting hole. The first hoisting machine mounting hole is located closer to a drive sheave of the mounting hoisting machine than the second hoisting machine mounting hole.

Images