JP2015030558A - Attachment method for suspension sheave of elevator, and change method for roping of elevator accompanied by attachment of suspension sheave - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an attachment method or the like for a suspension sheave of an elevator, allowing easy attachment of the new suspension sheave to an existing attachment target frame part without replacing the attachment target frame part.SOLUTION: In an attachment method for a suspension sheave of an elevator, an adapter 141 is prepared having a support part 145 rotatably supporting a new suspension sheave 31 in an upper part, and having a hook part 147 attached to an upper frame 17a of a car frame 17 in a lower part separate from the rotational axis center of the suspension sheave. The hook part is hooked onto the upper frame from below, and the new suspension sheave is attached to the upper frame through the adapter.

Description

  The present invention relates to a method for attaching an elevator car and a method for changing elevator roping accompanied by the attachment of the car.

  In elevator renovation work, roping may be changed only in the case of a large-scale renovation such as exchanging car frames, but it is common that minor changes such as control refurbishment do not involve roping changes. Met.

  However, with regard to hoisting machines used after renovation work, it is necessary to prepare a lineup of hoisting machines with a transport performance equivalent to or higher than that of the hoisting machine before the renovation so that existing specifications that cannot be handled will not occur. is there.

  Many of the existing hoisting machines are worm hoisting machines, and the hoisting machine used after the renovation work is the easiest to satisfy the existing specifications. In recent years, it is often required to switch to a PM hoisting machine (a hoisting machine using a permanent magnet type synchronous motor) that has a higher riding comfort and energy saving effect than a worm hoisting machine. Then, when switching the worm hoisting machine to a PM hoisting machine with different performance, the axial load applied to the hoisting sheave is halved by changing the roping from 1: 1 to 2: 1. This makes it possible to easily prepare a hoisting machine lineup that satisfies existing specifications.

  Here, up to now, when changing from 1: 1 roping to 2: 1 roping, the upper frame of the existing car frame and the upper frame of the existing weight frame may be 1: 1 roping. In many cases, the suspension vehicle is not structured to be attached. For example, a frame body with a suspension vehicle as shown in Patent Document 1 or Patent Document 2 is prepared, and the corresponding upper frame is exchanged or the car frame / weight frame. As a result, 2: 1 roping using a suspension car was realized.

JP-A 63-97588 JP 2010-6581 A

  However, when replacing the upper frame of the car frame and the upper frame of the weight frame, it is necessary to remove the attached parts once, and it is necessary to re-center when reattaching, which requires a lot of work time. Was. In addition, if the upper frame is a structure that cannot be removed by welding, etc., it will be necessary to replace the set of the cage frame and weight frame, and eventually the work equivalent to the large-scale renovation described above will occur, It was very expensive and labor intensive.

  The present invention has been made in view of the above, and provides an elevator suspension vehicle attachment method and the like that can easily attach a new suspension vehicle to an existing attachment target frame portion without replacing the attachment target frame portion. For the purpose.

  In order to achieve the above-described object, the elevator suspension vehicle mounting method of the present invention has a support portion that supports the suspension vehicle so as to be pivotable at an upper portion, and a hook portion that is attached to an attachment target frame portion. An adapter having a lower part away from the rotation axis of the suspension wheel is prepared, the hooking part is hooked on the attachment target frame part from below, and the suspension car is attached to the attachment target frame part via the adapter.

  According to the present invention, a new suspension vehicle can be easily attached to an existing attachment target frame portion without replacing the attachment target frame portion.

It is a figure which shows typically the structure before repair of the elevator which applies the attachment method of the suspension vehicle which concerns on this invention. It is a figure which shows the hanging state of the cage | basket | car in the state before repair shown in FIG. 1 from the front side. It is a figure which shows the hanging state of the cage | basket | car in the state before repair shown in FIG. 1 from the side. It is a figure which shows typically the structure after repair of the elevator to which the attachment method of the suspension vehicle which concerns on Embodiment 1 of this invention is applied. It is a figure which shows the suspended state of the cage | basket | car in the state before repair shown in FIG. 4 from the front side. It is a figure which shows the suspended state of the cage | basket | car in the state before repair shown in FIG. 4 from a side. It is a figure of the same aspect as FIG. 6 regarding the modification of this Embodiment 1. FIG. It is a figure which decomposes | disassembles and shows the structure of the modification example of FIG. It is a figure of the same aspect as FIG. 4 which shows the attachment state of a new suspension vehicle using an adapter with respect to the upper frame of the weight frame of a counterweight. It is a figure which shows the variation regarding the shape of the upper frame which is an attachment object frame part. It is a figure which shows the variation regarding the shape of the upper frame which is an attachment object frame part. It is a figure which shows the variation regarding the shape of the upper frame which is an attachment object frame part. It is a figure which shows the variation regarding the shape of the upper frame which is an attachment object frame part. It is a figure which shows the variation regarding the shape of the upper frame which is an attachment object frame part. It is a figure which shows the variation regarding the shape of the upper frame which is an attachment object frame part. It is a figure which shows the variation regarding the shape of the upper frame which is an attachment object frame part. It is a figure which shows the attachment method of the suspension vehicle as a 1st explanatory example. It is a figure which shows the attachment method of the suspension vehicle as a 2nd explanatory example. It is a figure of the same aspect as FIG. 7 regarding Embodiment 2 of this invention. It is a figure of the same aspect as FIG. 8 regarding this Embodiment 2. FIG. It is a figure of the same aspect as FIG. 7 regarding Embodiment 3 of this invention. It is a figure of the same aspect as FIG. 8 regarding this Embodiment 3. FIG. It is a figure of the same aspect as FIG. 7 regarding Embodiment 4 of this invention. It is a figure of the same aspect as FIG. 8 regarding this Embodiment 4. FIG. It is a flowchart which shows the change method of roping including the attachment method of the suspension vehicle which concerns on Embodiment 5 of this invention. FIG. 5 is a view similar to FIG. 4 showing 3: 1 roping as an example of N: 1 roping. It is a figure of the same aspect as FIG. 5 which shows the example using two adapters.

  DESCRIPTION OF EXEMPLARY EMBODIMENTS Hereinafter, embodiments of an elevator suspension mounting method and an elevator roping changing method involving attachment of a suspension vehicle according to the present invention will be described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate the same or corresponding parts. Further, in the description of the present application and the claims, the description in the vertical direction uses the upward direction of the car and the counterweight in the hoistway as “up” and the downward direction as “down”.

Embodiment 1 FIG.
FIG. 1 is a diagram schematically showing a configuration before repair of an elevator to which the present invention is applied. 2 and 3 are views showing the suspended state of the car in the state before the repair shown in FIG. 1 from the front side and the side. 2 is referred to as the front side (front side), and the left and right sides of FIG. 2 are referred to as the side sides. Further, regarding this, the front and back direction of the paper surface of FIG. 2 will be described as the front-rear direction, and the left-right direction of the paper surface of FIG. Furthermore, FIG. 4, FIG. 5 and FIG. 6 are views of the same mode as FIG. 1, FIG. 2, and FIG.

  First, a configuration that is a premise of an elevator to which the present invention is applied will be described. The elevator 1 includes a hoistway 3 that extends in the vertical direction, and a car 5 and a counterweight 7 that are movably provided therein. The car 5 and the counterweight 7 are connected to each other by a rope 9 as a connecting body and are suspended in the hoistway 3. A hoisting machine 13 such as a worm hoisting machine is provided above the car 5 and the counterweight 7 so as to be supported by a machine base 11 fixed to the hoistway 3. The rope 9 is wound around a hoisting machine (shallow wheel) 13 and a deflecting wheel 15 on the machine base 11, and the rope 9 is driven by the driving force of the hoisting machine 13, so that the car 5 and The counterweights 7 are raised and lowered in opposite directions.

  The configuration of FIG. 1 is a so-called 1: 1 roping roping mode, in which one end side of the rope 9 extending downward from one side of the hoisting machine mechanism such as the hoisting machine 13 and the deflecting wheel 15 is fixed to the car 5, The other end side of the rope 9 extending downward from the other side of the hoist mechanism is fixed to the counterweight 7.

  The car 5 is formed inside the car frame 17 composed of an upper frame 17a, a pair of left and right vertical frames 17b and a lower frame 17c, and a car floor 19 supported by the lower frame 17c. And a cab 21.

  In the state before the renovation, 1: 1 roping is performed as shown in FIG. 1, and no pulley element is necessary on the upper part of the car 5 and the upper part of the counterweight 7, as shown in FIGS. 2 and 3. The end of the rope 9 is connected to a clasp 23, and the clasp 23 is supported by the upper frame 17a.

  On the other hand, by applying the present invention, as an example, the elevator is modified to a roping mode that is 2: 1 roping as shown in FIG. In FIG. 4, a new suspension wheel 31 is provided on the upper portion of each of the car 5 and the counterweight 7. And, for example, one end side of the rope 9 extending downward from one side of the hoisting machine mechanism including the hoisting machine 13 such as a PM hoisting machine is wound around the new suspension wheel 31 of the car 5, and the end of the rope 9 is , It is connected to a machine base 11 that also functions as a rope. Further, the other end side of the rope 9 extending downward from the other side of the hoisting machine mechanism is wound around a new suspension wheel 31 of the counterweight 7, and the end portion of the rope 9 is similarly a machine that functions as a leashing beam. It is connected to the base 11. By such 2: 1 roping, the tension of the rope 9 is reduced to half of 1: 1 roping.

  Next, the attachment method of the suspension vehicle which concerns on this invention is demonstrated. In the present invention, the new suspension wheel 31 is attached to the upper frame of an existing car frame / weight frame via an adapter. The adapter has a support part for rotatably supporting the new suspension wheel 31 at the upper part, and a hook part attached to the attachment target frame part at the lower part away from the rotational axis of the new suspension wheel 31.

  In the basic example of the method for attaching the suspension vehicle according to the first embodiment, as shown in FIGS. 5 and 6, the adapter 141 has a pair of front and rear bent attachment plates (as an example, an L-shaped end face). , 143b are opposed to each other so that the bending is directed inward.

  The pair of mounting plates 143a and 143b are arranged so as to sandwich the new suspension wheel 31 and the upper frame 17a from the front and rear (outside). The new suspension wheel 31 is rotatably supported in the upper space between the pair of mounting plates 143a and 143b, and the upper portion of the adapter main body 143 functions as a support portion 145.

  In the lower space between the mounting plates 143a and 143b, an upper frame 17a that is a mounting target frame portion extends. The upper surfaces of the portions extending in the lateral direction (horizontal direction) below the mounting plates 143a and 143b are in contact with the lower surface 33 of the upper frame 17a from below, and the adapter 141 exerts a suspension force on the upper frame 17a. It is hooked to the upper frame 17a so that it can be given. Thereby, the lower part of the adapter main body 143 functions as a hooking part 147 that is separated downward from the rotational axis RC of the new suspension wheel 31 and hooked on the upper frame 17a from below.

  Furthermore, a modified example of the method for attaching the suspension vehicle according to the first embodiment will be described. FIG. 7 is a diagram of the same mode as FIG. 6 regarding the modified example of the first embodiment, and FIG. 8 is an exploded view showing the configuration of the modified example. In the present modification, the adapter 141 includes an adapter main body 143, at least one (a pair in the illustrated example) displacement prevention member 149, and at least one (a pair in the illustrated example) fall prevention member 151. .

  The pair of displacement prevention members 149 and the pair of fall prevention members 151 are each bent into an end face L shape, and are disposed inside the pair of mounting plates 143a and 143b.

  The vertical wall portions 149a of the pair of displacement preventing members 149 are in contact with each other along the inner facing surfaces (side surfaces) 35 of the pair of beam portions that form the upper frame 17a and are separated from each other in the front-rear direction. The lateral wall portion 149b of the pair of displacement preventing members 149 is placed on the upper surface of the portion extending in the lateral direction (horizontal direction) below the mounting plates 143a and 143b, and fixed (for example, bolted) to the mounting plates 143a and 143b. Yes. Thereby, it can suppress that the attachment plates 143a and 143b shift | deviate in the front-back direction accidentally with respect to the upper frame 17a.

  Further, the lateral wall portion 151b of the pair of fall prevention members 151 is in contact with the upper surface 37 of the upper frame 17a from above. The vertical wall portions 151a of the pair of fall prevention members 151 are in contact with the inner side surfaces of the portions extending in the vertical direction (vertical direction) of the mounting plates 143a and 143b, and are fixed (for example, bolted) to the mounting plates 143a and 143b. Yes. Thereby, it can suppress that attachment plate 143a, 143b moves to the downward direction accidentally with respect to the upper frame 17a (falling).

  4 to 8, the case where the new suspension wheel 31 is attached to the upper frame 17 a of the car frame 17 has been described. However, as shown in FIG. 9, the upper frame 18 a of the weight frame 18 in the counterweight 7 is provided. On the other hand, also when attaching the new suspension vehicle 31, it can carry out similarly using the adapter 141 mentioned above.

  Moreover, this Embodiment 1 is applicable also to the upper frame 17a of the cage frame 17 of various shapes as shown in FIGS. 10-16, and the upper frame 18a of the weight frame 18, for example. First, the above description has been made with the upper frame 17a and the upper frame 18a in the shape shown in FIG. That is, the upper frame of FIG. 10 has a mode in which a pair of channel steels are arranged so that the openings are aligned with each other outward. The upper frame of FIG. 11 has a form in which a pair of channel steels having end faces (cross sections) having the same shape as FIG. 10 are arranged so that the openings face each other. The upper frame of FIG. 12 has an aspect in which a pair of steel plates bent in a U-shape are arranged so that the openings are aligned outward. The upper frame in FIG. 13 has a form in which a pair of steel plates bent in a C-shape are arranged so that the openings are aligned outward. Although not shown in the drawing, the upper frame is arranged so that the pair of steel plates in FIGS. 12 and 13 face each other so as to correspond to the relationship of the upper frame in FIG. 11 with respect to the upper frame in FIG. A different form may be acceptable.

  The upper frame of FIG. 14 has an aspect in which steel plates bent in a U-shape are arranged with the opening facing downward. The upper frame in FIG. 15 has a form in which steel plates bent into a hat shape are arranged with the opening facing downward. The upper frame of FIG. 16 has an aspect made of I-shaped steel (H-shaped steel).

  The first embodiment can be applied to the upper frame of FIGS. 10 to 16 as a basic example shown in FIG. 6, and the displacement prevention member 149 and the fall prevention member 151 shown in FIGS. As a modified example provided, it can be applied to the upper frame of FIGS.

  Further, as another modification of the method for attaching the suspension vehicle according to the first embodiment, it can be implemented as an adapter having only one of the deviation prevention member 149 and the fall prevention member 151. In that case, it can be applied to the upper frame of FIG. 10 and FIGS. 12 to 15 as a modified example including only the deviation preventing member 149, and FIG. 10 to FIG. 14 and FIG. It could be applied to the top 16 frames.

  According to the attachment method of the suspension vehicle according to the first embodiment described above, the new suspension vehicle is attached via the adapter that is hooked to the upper frame of the car frame or the upper frame of the weight frame, so that the existing upper frame is replaced. A new suspension wheel can be easily attached to the existing upper frame.

  In addition, since the new suspension wheel is supported at the upper part of the adapter and hooked on the upper frame at the lower part of the adapter, there is no need for drilling or the like in the existing upper frame. In this regard, it is a method using the existing upper frame, and as an attachment method different from the present invention, for example, the attachment method as the first explanation example shown in FIG. 17 or the second explanation example as shown in FIG. A mounting method can also be assumed. Each of these explanation examples is a case where the new suspension wheel 31 is laid out inside a pair of beam portions that are separated from each other in the front and rear directions that constitute the upper frame 17a. Therefore, in the first explanatory example, as shown in FIG. 17, a drilling process for receiving the U bolt 39 for supporting the rotation shaft of the new suspension wheel 31 on the lower surface of the upper frame 17 a is necessary. On the other hand, in the second explanatory example, as shown in FIG. 18, it is necessary to make a hole for receiving the rotation shaft of the new suspension wheel 31 on the side surface of the upper frame 17a. When passing through the hole on the side surface of the upper frame 17a, it is necessary to disassemble the upper frame 17a or to assemble the rotating shaft and the suspended vehicle part of the new suspended vehicle 31 on site. Also, in consideration of the difficulty of work in any of the drilling processes of FIGS. 17 and 18, the upper frame part may be once removed from the car frame or the weight frame and processed, and eventually the upper frame is replaced. It is possible that time and effort equivalent to the case may occur. In any case, drilling, on-site disassembly, on-site assembly, etc. are required, and there is a problem that workability is poor. On the other hand, in the first embodiment, as described above, the new suspension wheel 31 is supported at the upper portion and hooked on the upper frame 17a at the lower portion. Therefore, drilling and field disassembly are not required, and the upper frame 17a is simply replaced. Is not only unnecessary, but there is an advantage that good workability can be maintained.

  In the first and second illustrative examples described above, when the new suspension 31 is laid out inside the pair of beam portions, the new suspension 31 having a desired width may not be arranged depending on the distance between the pair of beam portions. However, in the first embodiment, the new suspension vehicle 31 is separated upward with respect to the hooking portion 147, and the new suspension vehicle 31 is located above the upper frame 17a, so that it is possible to secure a width space for arranging the suspension vehicle. There is also an advantage that it is easy. In other words, according to the first embodiment, when the distance between the pair of beam parts constituting the upper frame is narrow, particularly when the distance between the pair of beam parts is narrow and a new suspension wheel cannot be inserted between the beam parts. Since the adapter can be attached to the lower surface of the upper frame through the outside of the upper frame and a space for placing a new suspension vehicle above the upper frame can be secured, it is possible to replace the existing upper frame with a narrow interval between the pair of beam portions. In addition, the new suspension wheel can be attached to the upper frame without deteriorating workability.

Embodiment 2. FIG.
Next, a second embodiment of the present invention will be described with reference to FIGS. FIGS. 19 and 20 are views of the same mode as FIGS. 7 and 8, respectively, regarding the second embodiment.

  The adapter 241 in the second embodiment also has a support portion 245 that supports the new suspension wheel 31 so as to be rotatable, and has a hook portion 247 attached to the upper frame 17a. At the bottom away from.

  The adapter 241 according to the second embodiment includes at least an adapter main body 243 composed of a pair of flat mounting plates 243a and 243b, a pair of hook members 253 fixed to the adapter main body 243, and the adapter main body 243 or And at least one fall prevention member fixed to the hook member 253. In a more specific example shown in FIGS. 19 and 20, a pair of pressing members 251 and a pair of clips 255 are used as the fall prevention member.

  Such a specific example will be further described. A pair of front and rear flat mounting plates 243a and 243b constituting the adapter main body 243 are inserted between a pair of beam portions in the upper frame 17a. The new suspension wheel 31 is rotatably supported in the upper space between the pair of mounting plates 243a and 243b, and the upper portion of the adapter main body 243 functions as the support portion 145.

  A hook member 253 is fixed to lower portions of the mounting plates 243a and 243b that are inserted through the upper frame 17a and extend further downward than the lower surface 33 of the upper frame 17a. Each of the pair of hook members 253 is bent in an end face L shape. The horizontal wall portion 253b of the hook member 253 is in contact with the lower surface 33 of the upper frame 17a from below, and the vertical wall portion 253a of the hook member 253 is fixed (for example, bolted) to the outer side surface of the mounting plates 243a and 243b. Yes. That is, the hook member 253 is fixed to the lower part of the pair of mounting plates 243a and 243b and hooked on the lower surface 33 of the upper frame 17a. The lower part of the adapter 241 is separated downward from the rotational axis RC of the new suspension wheel 31. And it functions as a hooking part 247 hooked on the upper frame 17a from below.

  Each of the pair of clips 255 is bent in an L-shaped end surface, and is fixed (for example, bolted) to the hook member 253 above the hook member 253. Due to the presence of the vertical wall portion 255 a in the clip 255, an appropriate gap is secured between the horizontal wall portion 255 b in the clip 255 and the upper surface of the hook member 253. The clip 255 is fixed to the hooking member 253 with a part of the upper frame 17a sandwiched between the clip 255 and the hooking member 253. Thereby, it can suppress that attachment plate 243a, 243b moves to the downward direction accidentally with respect to the upper frame 17a (falling).

  Each of the pair of pressing members 251 is bent in an end surface L shape, and the lateral wall portion 251b of the pair of fall prevention members 251 is in contact with the upper surface 37 of the upper frame 17a from above. The vertical wall portions 251a of the pair of fall prevention members 251 are in contact with the outer side surfaces of the portions extending in the vertical direction (vertical direction) of the mounting plates 243a and 243b and fixed (for example, bolted) to the mounting plates 243a and 243b. Yes. Also by this, it can suppress that attachment plate 243a, 243b moves downward (falling) accidentally with respect to the upper frame 17a.

  In the above description, the case where the new suspension wheel 31 is attached to the upper frame 17a of the car frame 17 has been described. In the second embodiment, the weight frame in the counterweight 7 is the same as in the first embodiment. The adapter 241 described above can be used as a mode in which the new suspension vehicle 31 is attached to the 18 upper frame 18a.

  In the above description, the case where the upper frame has the shape shown in FIG. 10 has been described as an example. However, the second embodiment is not limited to this, and is widely applied to an upper frame having a pair of beam portions. For example, the present invention can be implemented for the upper frame shown in FIGS. 11, 12, and 13.

  Even with the suspension wheel attachment method according to the second embodiment described above, a new suspension wheel is attached via an adapter that hooks onto the upper frame of the car frame or the upper frame of the weight frame, so that the existing upper frame can be replaced without replacement. A new suspension wheel can be easily attached to the existing upper frame. Furthermore, as in the first embodiment, the new suspension car is supported at the upper part and hooked on the upper frame at the lower part, so that drilling and field disassembly is not required, and it is not limited to merely replacing the upper frame, There is an advantage that workability can be maintained well. Furthermore, since the new suspension vehicle is separated upward with respect to the hook portion and the new suspension vehicle is located above the upper frame, there is an advantage that it is easy to secure a width space for arranging the suspension vehicle.

  In addition, according to the second embodiment, the distance between the pair of mounting plates can be reduced, so that the rotation shaft length of the new suspension wheel can be easily reduced, and an advantageous structure in terms of strength and cost can be obtained. There is also. In addition, since the shape of the mounting plate may be a flat plate, it is advantageous in terms of cost from the viewpoint of cost associated with the processing of the shape. Further, since the pair of mounting plates are set by being inserted between the pair of beam portions in the upper frame, there is no fear that the adapter body is displaced laterally with respect to the upper frame, and a dedicated displacement preventing member is unnecessary. can do. In addition, since the installation to the upper frame of the mounting plate at the site may be a simple insertion mode, it is possible to ship a new suspension car in a sub-assembled state by attaching it to the mounting plate in advance, facilitating on-site work. In other words, workability can be improved.

Embodiment 3 FIG.
Next, Embodiment 3 of the present invention will be described with reference to FIGS. FIGS. 21 and 22 are views of the same mode as FIGS. 7 and 8, respectively, regarding the third embodiment.

  The adapter 341 according to the third embodiment also has a support portion 345 for rotatably supporting the new suspension vehicle 31 at the upper portion, and a hook portion 347 attached to the upper frame 17a. At the bottom away from.

  The adapter 341 according to the third embodiment includes an adapter main body 343 including a pair of attachment plates 343a and 343b, and a pair of clips 355 fixed to the adapter main body 343. The upper frame 17a has a pair of protruding end portions 25 on the upper portion thereof, and the pair of mounting plates 343a and 343b each have a connecting portion 357 extending along the protruding direction of the protruding end portion 25 on the lower portion thereof. The mounting plates 343a and 343b are arranged such that the connecting portions 357 are in contact with the upper surface 37 of the protruding end portion 25 of the upper frame 17a, and the pair of clips 355 are arranged so that the protruding end portion 25 is connected to the connecting portion 357. It is fixed to the connecting portion 357 with being sandwiched. Although not limited as the third embodiment, in a more specific example shown in FIGS. 21 and 22, the protruding direction of the protruding portion 25 and the extending direction of the connecting portion 357 are outward, and The pair of mounting plates 343a and 343b are connected and fixed to each other.

  The pair of front and rear mounting plates 343a and 343b constituting the adapter main body 343 have a hook-like portion bent in a U-shape at the lower part. The hook-shaped portion includes a connecting portion 357 extending outward in the lateral direction and a connecting portion 359 extending vertically at a position inside the tip of the connecting portion 357.

  The pair of mounting plates 343a and 343b are fixed to each other (for example, bolted) at the connecting portion 359. In addition, since the connection part 359 is located inside the front-end | tip of the connection part 357, or the support part 345, in the case of bolt fixation, it can mutually fix with a short volt | bolt. Are fixed in contact with each other, so that the pair of mounting plates 343a and 343b can be more firmly connected.

  Each of the pair of clips 355 is bent in an L-shaped end surface, and is fixed (for example, bolted) to the connection portion 357 below the connection portion 357. Due to the presence of the vertical wall portion 355 a in the clip 355 that covers the tip of the protruding end portion 25, an appropriate gap is secured between the horizontal wall portion 355 b in the clip 355 and the lower surface of the connection portion 357. The clip 355 is fixed to the connecting portion 357 with the protruding end 25 sandwiched between the connecting portion 357 and the connecting portion 357 in contact with the upper surface 37 of the protruding end 25 of the upper frame 17a.

  Thereby, the clip 355 is hooked on the lower surface 34 of the protruding end portion 25 of the upper frame 17a, and the drop of the pair of mounting plates 343a and 343b with respect to the upper frame 17a is suppressed. That is, the clip 355 is in contact with the lower surface 34 of the protruding end portion 25 of the upper frame 17a from below, and the lower portion of the adapter 341 can be applied to the upper frame 17a so as to apply a suspending force to the upper frame 17a. It functions as a hook portion 347 to be hooked. Further, since the lower surface of the connecting portion 357 is in contact with the upper surface 37 of the protruding end portion 25 of the upper frame 17a, the mounting plates 343a and 343b may be moved downward relative to the upper frame 17a (falling). Can be suppressed. Further, since the pair of mounting plates 343a and 343b are fixed to each other and the tips of the pair of protruding end portions 25 are covered with the connecting portion 357 and the clip 355, the adapter body 343 in the lateral direction with respect to the upper frame 17a. It is also possible to suppress the positional deviation.

  In the above description, the case where the new suspension wheel 31 is attached to the upper frame 17a of the car frame 17 has been described. In the third embodiment, the weight frame in the counterweight 7 is the same as the above embodiment. The adapter 341 described above can be used as a mode of attaching the new suspension vehicle 31 to the 18 upper frame 18a.

  In the above description, the case where the upper frame has the shape shown in FIG. 10 has been described as an example. However, the third embodiment is not limited to this, and is widely applied to an upper frame having a protruding end on the upper part. For example, the present invention can be carried out on the upper frame shown in FIGS. 11, 12, 13 and 16.

  Even with the suspension wheel attachment method according to the third embodiment described above, a new suspension wheel is attached via an adapter that hooks onto the upper frame of the car frame or the upper frame of the weight frame, so that the existing upper frame can be replaced without replacement. A new suspension wheel can be easily attached to the existing upper frame. Furthermore, as in the first embodiment, the new suspension car is supported at the upper part and hooked on the upper frame at the lower part, so that drilling and field disassembly is not required, and it is not limited to merely replacing the upper frame, There is an advantage that workability can be maintained well. Furthermore, since the new suspension vehicle is separated upward with respect to the hook portion and the new suspension vehicle is located above the upper frame, there is an advantage that it is easy to secure a width space for arranging the suspension vehicle.

  In addition, in this Embodiment 3, since the setting to the upper frame of the mounting plate in the field may be a simple mounting mode on the upper surface of the upper frame, a new suspension car is assembled in advance on the mounting plate and sub-assembled. It can also be shipped in a state, facilitating on-site work, that is, improving workability. Moreover, in this Embodiment 3, since the whole adapter is above the upper frame and is hooked and fixed to the lower surface of the upper end of the upper frame, the adapter is hooked and fixed to the lowermost part of the upper frame. However, there is also an advantage that the work is easy to do.

  In addition, the pair of connection parts and the pair of clips at the bottom of the mounting plate also serve as three parts as a hook part, a slip prevention part, and a fall prevention part, so that the number of components of the adapter is extremely small. The number of parts can be reduced. This also means that a dedicated shift prevention member and fall prevention member can be dispensed with. Further, as the number of parts is reduced, the assembling work can be simplified, and the workability can be improved accordingly. Furthermore, the third embodiment is not limited to an upper frame having a pair of beam portions. Therefore, as described above, the present invention can also be applied to an upper frame made of a single steel material as shown in FIG.

Embodiment 4 FIG.
Next, a fourth embodiment of the present invention will be described with reference to FIGS. FIG. 23 and FIG. 24 are views of the same mode as FIG. 7 and FIG.

  The adapter 441 according to the fourth embodiment also has a support portion 445 that supports the new suspension wheel 31 so as to be rotatable, and has a hook portion 447 attached to the upper frame 17a. At the bottom away from.

  The adapter 441 in the third embodiment includes an adapter main body 443 including a pair of mounting plates 443a and 443b, and a hook member 461 that is fixed to the adapter main body.

  The hook member 461 is a member bent in an end face U-shape. Moreover, in this Embodiment 4, the existing clasp 23 is being fixed to the lower surface of the existing upper frame 17a. The hook member 461 is disposed below the clasp 23 in a posture in which the concave side of the U-shape is directed downward. The lateral wall portion 461 b of the hook member 461 is brought into contact with the lower surface of the clasp 23 and fastened and fixed to the clasp 23. Specifically, it is fixed through fastening means such as bolts through existing holes in the clasp 23.

  The pair of front and rear mounting plates 443a and 443b are formed in a flat plate shape as an example, and are disposed on the outer sides of the upper frame 17a, the clasp 23, and the hook member 461, respectively. The pair of attachment plates 443a and 443b are fixed (for example, bolted) to the corresponding outer side surfaces of the pair of vertical wall portions 461a in the hook member 461.

  In the above description, the case where the new suspension wheel 31 is attached to the car frame 17 has been described. However, in the fourth embodiment, the weight frame 18 in the counterweight 7 is similar to the above embodiment. The adapter 441 described above can be used as a mode for attaching the new suspension vehicle 31.

  In the above description, the case where the upper frame has the shape shown in FIG. 10 has been described as an example. However, the present embodiment is not limited to this, and the top clasp is fixed to the lower part. The present invention can be widely applied to the frame. For example, the present invention can be applied to the upper frame shown in FIGS.

  Even with the suspension vehicle mounting method according to the fourth embodiment described above, a new suspension vehicle is attached via an adapter that hooks onto the upper frame of the car frame or the upper frame of the weight frame, so that the existing upper frame can be replaced without replacement. A new suspension wheel can be easily attached to the existing upper frame. Furthermore, as in the first embodiment, the new suspension car is supported at the upper part and hooked on the upper frame at the lower part, so that drilling and field disassembly is not required, and it is not limited to merely replacing the upper frame, There is an advantage that workability can be maintained well. Furthermore, since the new suspension vehicle is separated upward with respect to the hook portion and the new suspension vehicle is located above the upper frame, there is an advantage that it is easy to secure a width space for arranging the suspension vehicle. In particular, in the fourth embodiment, since the pair of mounting plates pass outside the upper frame, as in the first embodiment, when the distance between the pair of beam portions constituting the upper frame is narrow, in particular, the pair of beams Even when the interval between the portions is narrow and the new suspension vehicle cannot be inserted between the beam portions, the new suspension vehicle can be attached to the upper frame without replacing the existing upper frame and without deteriorating workability.

  Moreover, in this Embodiment 4, since it receives a load with a clasp as in the case of the existing 1: 1 roping before the renovation, it is possible to easily realize the same strength even in the structure after the renovation. There is. Further, in the existing 1: 1 roping mode, the clasp is fixed to the lower side of the upper frame. In particular, in the weight frame, the clasp is often welded to the upper frame and cannot be removed. The fourth embodiment is excellent in that the work on the car frame and the weight frame is reduced as much as possible and the existing upper frame is utilized. Further, the fourth embodiment has a shape that is difficult to selectively apply from all of the first to third embodiments, such as the upper frame of the shape of FIGS. 11 and 14 that is mainly used on the weight side. Effective for the upper frame.

  In addition, in the fourth embodiment, in the setting of the mounting plate on the upper frame in the field, the pair of mounting plates are attached to the upper frame and the rope so that the upper frame is positioned between the pair of mounting plates. Since it is only necessary to cover the gold and the hook member, it is possible to ship the new suspension car in a state of being assembled in advance on the mounting plate and sub-assembled, thereby facilitating on-site work, that is, improving workability. .

  In addition, in the fourth embodiment, since the hook member is fastened and fixed to the rope clasp, it is possible to prevent the adapter from moving downward (falling) with respect to the upper frame. be able to. That is, a dedicated fall prevention member can be eliminated. In addition, the fastening and fixing of the hook member to the clasp is performed using the existing holes that functioned to support the ropes in the existing clasps, so the workability associated with the new drilling process deteriorated. Is also avoided. In addition, since the hook member connects the pair of attachment plates so as to bridge the pair of mounting plates, the adapter can be prevented from being displaced in the lateral direction with respect to the upper frame. That is, a dedicated shift preventing member can be eliminated.

Embodiment 5 FIG.
Next, as a fifth embodiment of the present invention, a description will be given of a roping changing method including the above-described suspension vehicle mounting method according to the first to fourth embodiments. As a specific example, as a renovation work in which roping is changed from 1: 1 to 2: 1 as the worm hoisting machine is switched to a PM hoisting machine having a different performance, explanation is made based on the flowchart shown in FIG. To do.

  First, as step S1, an adapter provided with a hook portion for the upper frame and a support portion for the suspension wheel is prepared. That is, any one of the adapters 141, 241, 341, and 441 described in the method for attaching the suspension vehicle according to the first to fourth embodiments described above is prepared in advance for changing the roping.

  Next, as step S2, for example, the end of the rope is removed from the existing upper frame that does not have a suspension wheel and is applied with 1: 1 roping as shown in FIG. Subsequently, as step S3, a new suspension wheel is attached to the existing upper frame from which the end of the rope has been removed, without performing any replacement or drilling, via the adapter. The attachment of the new suspension vehicle to the existing upper frame via the adapter is performed by any of the corresponding methods in the first to fourth embodiments.

  Further, as step S4, a rope is wound around the new suspension wheel attached to the upper frame, and 2: 1 roping is performed. In addition, the operation | work which replaces a worm hoisting machine with PM hoisting machine can be performed at the suitable timing between the above-mentioned step S2 to step S4 as needed.

  Also in the fifth embodiment, the advantages described above can be obtained with the corresponding adapters of the first to fourth embodiments described above. In addition, although the said description demonstrated the case where roping was changed from 1: 1 to 2: 1 as an example, this Embodiment 5 is not limited to this, It is 1: 1 with the upper frame which does not have a suspension vehicle. It broadly includes changes from roping to N: 1 roping (N: an integer greater than or equal to 2) with an upper frame fitted with a new suspension vehicle via an adapter. Therefore, as an example, the fifth embodiment can be implemented as a change to 3: 1 roping as shown in FIG. 26. In other words, the adapters of the first to fourth embodiments described above are connected to N : 1 can be used to change to roping.

  Although the contents of the present invention have been specifically described with reference to the preferred embodiments, various modifications can be made by those skilled in the art based on the basic technical idea and teachings of the present invention. It is self-explanatory.

  For example, in the above description, an example is described in which one adapter is used to attach one new suspended vehicle to the upper frame, but the present invention is not limited to this, and the car frame is not limited thereto. Alternatively, it is possible to attach a plurality of new suspension vehicles to the upper frame of the weight frame using a plurality of adapters. For example, as shown in FIG. 27, two adapters (any one of the adapters 141, 241, 341, and 441) are connected to the upper frame 17a of the car frame 17 in the extending direction of the upper frame 17a. It is also possible to implement as a mode in which two new suspension wheels 31 are attached through the two adapters mounted side by side.

  1 elevator, 9 rope, 17 car frame, 17a upper frame, 18 weight frame, 18a upper frame, 23 clasp, 25 protruding end, 31 new suspension wheel, 33, 34 lower surface, 141, 241, 341, 441 adapter, 143 243, 343, 443 Adapter body, 143a, 143b, 243a, 243b, 343a, 343b, 443a, 443b Mounting plate, 145, 245, 345, 445 Support part, 147, 247, 347, 447 Hook part, 149 Prevention of displacement Member, 151 fall prevention member, 251 pressing member, 253 hook member, 255, 355 clip, 357 connection part, 359 coupling part, 461 hook member.

Claims (6)

An adapter is provided that has a support portion that supports the suspension wheel so as to be pivotable at an upper portion, and has a hook portion that is attached to an attachment target frame portion at a lower portion away from the rotation axis of the suspension vehicle,
Hang the hook part from below the attachment target frame part,
The suspension vehicle is attached to the attachment target frame portion via the adapter.
How to install the elevator car. The adapter has an adapter body composed of a pair of bent mounting plates, at least one slip prevention member fixed to the adapter body, and at least one fall prevention member fixed to the adapter body. ,
The attachment target frame is an upper frame of a car frame or a weight frame having a pair of beam portions,
The pair of mounting plates are arranged to face each other so that the bending is directed inward, and passes through the outside of the upper frame,
The lower portions of the pair of mounting plates are hooked on the lower surface of the upper frame,
The suspension wheel is supported between the upper portions of the pair of mounting plates,
The displacement prevention member is in contact with the inner facing surfaces of the pair of beam portions in the upper frame, and the displacement of the pair of mounting plates with respect to the upper frame is suppressed,
The fall prevention member is brought into contact with the upper surface of the upper frame, and the pair of mounting plates are prevented from dropping with respect to the upper frame.
The method for attaching the elevator car of claim 1. The adapter includes an adapter main body including a pair of mounting plates, a pair of hook members fixed to the adapter main body, and at least one fall prevention member fixed to the adapter main body or the hook member. ,
The attachment target frame is an upper frame of a car frame or a weight frame having a pair of beam portions,
The pair of mounting plates are inserted between the pair of beam portions in the upper frame,
The pair of hook members are fixed to the lower portions of the pair of mounting plates and hooked on the lower surface of the upper frame,
The suspension wheel is supported between the upper portions of the pair of mounting plates,
The fall prevention member is at least contacted with the upper surface of the upper frame and fixed to the mounting plate, or is fixed to the hooking member by sandwiching the upper frame with the hooking member, The pair of mounting plates are prevented from dropping with respect to the upper frame.
The method for attaching the elevator car of claim 1. The adapter has an adapter main body composed of a pair of mounting plates, and a pair of clips fixed to the adapter main body,
The attachment target frame portion is an upper frame of a car frame or a weight frame,
The upper frame has a pair of protruding ends at the upper part thereof,
Each of the pair of mounting plates has a connection portion extending along a protruding direction of the protruding end portion at a lower portion,
The suspension wheel is supported between the upper portions of the pair of mounting plates,
The pair of mounting plates are arranged such that the connection portion is in contact with the upper surface of the protruding end portion of the upper frame,
The clip is fixed to the connecting portion with the protruding end portion sandwiched between the connecting portion, and thereby the clip is hooked on the lower surface of the protruding end portion of the upper frame, and the pair of mounting plates , Falling on the upper frame is suppressed,
The method for attaching the elevator car of claim 1. The adapter has an adapter main body composed of a pair of mounting plates, and a hook member fixed to the adapter main body.
The attachment target frame part is an upper frame of a cage frame or a weight frame provided with a rope clasp.
The suspension wheel is supported between the upper portions of the pair of mounting plates,
The hook member is brought into contact with the lower surface of the clasp and is fastened and fixed to the clasp.
The pair of mounting plates are arranged on the outer side of the upper frame, the clasp and the hook member, and are fixed to the hook member.
The method for attaching the elevator car of claim 1. Prepare an adapter with a hooking part for the frame part to be attached and a support part for the new suspension wheel,
Remove the end of the rope from the existing upper frame without 1: 1 wheeling applied with 1: 1 roping,
Then, for the existing upper frame with the end of the rope removed, the new suspension car is attached to the existing upper frame via the adapter without replacement.
Thereafter, a rope is wound around the new suspension wheel attached to the existing upper frame, and N: 1 roping (N: an integer of 2 or more) is performed,
The attachment of the new suspension vehicle via the adapter to the existing upper frame is performed by the method of attaching an elevator suspension vehicle according to any one of claims 1 to 5.
How to change elevator roping with suspension car installation.

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