JP3820336B2 - Elevator repair method - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an elevator repair method.
[0002]
[Prior art]
A conventional general elevator repair method will be described with reference to FIG. 6 which is a longitudinal sectional view of an elevator and FIG. 7 which is a plan view of an elevator machine room.
[0003]
Fixed to the hoistway 1 are a guide rail 3 for the car that guides the car 2 by a plurality of brackets 4 and 7, and a guide rail 6 for the counterweight that guides the counterweight 5. 6 extends from the bottom of the hoistway 1 to the vicinity of the top. An elevator machine room 30 is formed in the upper part of the hoistway 1, and a hoisting machine 40 composed of a sheave 41, a warping wheel 42 and an electric motor 43 is installed on the machine base 19 in the elevator machine room 30. Yes. Further, the elevator machine room 30 is provided in the car 2 by detecting an abnormal acceleration of the car 2 as shown in FIG. 7 and a control device 44 that electrically controls the speed and operation of the car 2. A speed governor 21 for operating an emergency stop device (not shown) is disposed. A suspension plate (not shown) is provided on each of the counterweights 5 and the counterweights 5, and both ends of the main rope 11 are fixed via a sheave 41 and a warping wheel 42 of the hoist 40. . In this way, the car 2 is moved up and down along the guide rail 3 via the main rope 11 by driving the hoisting machine 40.
[0004]
In such an elevator, renewal work is performed for the purpose of updating the running performance, display control, etc. to the latest, reducing power consumption and shortening waiting time. The refurbishment method uses existing products for the car 2, the counterweight 5, the guide rails 3, 6 and the like, and replaces the control devices 44 and the hoisting machine 40 installed in the elevator machine room 30 with the latest models. Like to do.
[0005]
[Problems to be solved by the invention]
In recent years, there has been a deregulation measure such as not including common parts such as stairs in the calculation of the floor area ratio of buildings in apartment houses such as condominiums, and that elevators may be installed in hoistways. Therefore, an elevator that does not impose a load on the building side is adopted as a standard type while the drive device is arranged in the hoistway without forming the elevator machine room 30. ing.
[0006]
However, when upgrading an existing elevator to a type without an elevator machine room, it is difficult to place each device due to lack of plane dimensions in the hoistway, or the load of the elevator is structurally caused by the elevator device itself. Since it was impossible to pay, it was necessary to install a new elevator after removing a set of existing elevators when upgrading to an elevator without an elevator machine room.
[0007]
An object of the present invention is to provide an elevator refurbishment method in which existing parts of main equipment such as a car, a counterweight, a guide rail and the like can be renewed to the latest elevator without removing all the existing elevators. It is to provide.
[0008]
[Means for Solving the Problems]
In order to achieve the above-mentioned object, the present invention provides a drive in which a guide rail is erected on a hoistway, a carriage and a counterweight each guided along the guide rail are connected by a main rope, and the main rope is wound around. In the elevator refurbishing method in which the apparatus is arranged in the elevator machine room at the upper part of the hoistway and the control device and the driving device are updated, the passenger car, the counterweight and the guide rail are diverted from existing products, and the passenger car Attach the sheave to each of the counterweight and the counterweight, attach the newly installed drive device to the machine base after removing the existing drive device, and wrap the main rope around the drive device via the sheave A wall with a door for forming an empty space is provided in the elevator machine room .
[0009]
In the elevator repair method according to the present invention, the existing car, the counterweight and the guide rail are diverted, the sheaves are respectively attached to the upper part of the car and the upper part of the counterweight, and the sheaves are arranged at the upper part of the hoistway through these sheaves. Since the main rope is wrapped around the new drive unit, the elevator machine room can be made substantially smaller to form an empty space, and the car and the balance can be balanced without removing all existing elevators. Existing products of major equipment such as weights and guide rails can be used to upgrade to the latest elevators with new drive units.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, embodiments of the present invention will be described with reference to the drawings.
[0011]
First, the elevator before renovation is configured as shown in FIG. 6, and in the hoistway 1, there are a guide rail 3 for a car that guides a car 2 and a guide rail 6 for a counterweight that guides a counterweight 5. Each of the guide rails 3 and 6 is fixed from the bottom of the hoistway 1 to the vicinity of the top. An elevator machine room 30 is formed in the upper part of the hoistway 1. In the elevator machine room 30, a pair of machine tables 19 arranged on the floor along the depth direction of the hoistway 1, and the machine table 19 An existing hoisting machine 40 mounted on top and a separate control device 44 are provided.
[0012]
FIG. 1 is a longitudinal sectional view of an elevator employing an elevator repair method according to an embodiment of the present invention.
[0013]
When the elevator shown in FIG. 6 is modified, the car 2 in the hoistway 1, the counterweight 5, the guide rails 3 and 6 fixed by the brackets 4 and 7, and the machine base 19 in the elevator machine room 30 are already installed. Use the goods and remove other main components. Subsequently, the suspension plates (not shown) provided on the upper portions of the car 2 and the counterweight 5 are modified, and the sheaves 9 and 10 are respectively attached.
[0014]
On the other hand, in the machine room 30, as shown in FIG. 2 which is a plan view, the cradles 18a, 18b, and 18c are discretely arranged so as to bridge the upper part of the existing pair of machine pedestals 19a and 19b. A plurality of hoisting machine bases 14a, 14b are provided on the tops of these bases 18a, 18b, 18c so as to bridge them, and the sheave 12 is provided above the bases 14a, 14b. It is equipped with a state-of-the-art hoisting machine 13 that is used in a standard type elevator without a machine room.
[0015]
The end bracket 17a is arranged so as to bridge between the cradles 18a, 18b, and the end bracket 17b is arranged so as to bridge between the cradles 18b, 18c. One end 16a of the main rope 11 is fixed to the end bracket 17a of the elevator machine room 30 through the sheave 9 of the car 2, and the other end 16b is balanced through the sheave 10 of the weight 5 with the other end 16b. To the end bracket 17b. Here, although the end brackets 17a and 17b are divided into two parts, the cradle 18b can be omitted if they are integrally formed.
[0016]
The newly installed control device 20 is mounted on the front side of the existing machine bases 19a and 19b in the elevator machine room 30 and is driven when the control device 20 operates the elevator during maintenance work. Since the movement of the hoisting machine 13, which is a device, can be visually observed, there is no problem in safety. The controller 20 is not limited to the upper part of the existing machine bases 19a and 19b, and may be disposed in the periphery thereof. At the time when the existing elevator was installed, the elevator machine room 30 is required to have an area that is at least twice the projected area of the hoistway according to the Building Standard Law, and has an equivalent size. However, since it is different at present, when the control device 20 is arranged in the vicinity of the existing machine base 19 and the wall 24 with a door is provided in the elevator machine room 30, the elevator is provided with an empty space 30a to the customer. It can also be used for other purposes.
[0017]
In this way, the car 2, the counterweight 5, the guide rails 3, 6 and the machine base 19 can be diverted with some modifications, and the sheave 9 is provided on the upper part of the car 2, and the counterweight 5 A sheave 10 is provided at the top, and a state-of-the-art hoisting machine 13 that is used in a standard elevator without a machine room is arranged, and then the hoisting machine 13 is wound around the sheaves 9 and 10. Therefore, without removing all the existing elevators, existing products of main equipment such as a passenger car, a counterweight, a guide rail, etc. can be diverted to be updated to the latest elevator by a newly installed driving device.
[0018]
In addition, since the car 2 is diverted, the speed governor 21 installed in the elevator machine room 30 can also be diverted, and the core of the car 2 does not change even after remodeling. It can be used as it is. In addition, in the standard type elevator without a machine room, it is assumed that the load of the elevator is not burdened on the building side, but in the case of renovation, the existing building has already been designed in consideration of the load, There is no problem even if a load acts on the building side via the existing machine bases 19a and 19b. Furthermore, since the empty space 30a can be formed in the elevator machine room 30, and this empty space 30a can be used for other purposes than the elevator, the effective floor area in the building can be expanded. , The asset value of the building will improve.
[0019]
FIG. 3 is a cross-sectional view showing an elevator machine room that employs an elevator repair method according to another embodiment of the present invention. The car 2, the counterweight 5, the guide rails 3, 6, and the machine base 19 are diverted from existing equipment, while a sheave is provided on the upper part of the car 2 and the counterweight 5, respectively. The modification for arranging the upper unit 13 is the same as that in the previous embodiment, and the detailed illustration of the same part is omitted.
[0020]
In the previous embodiment, the newly installed control device 20 is disposed in the elevator machine room 30, but in this embodiment, the hoistway 1 has a space for installation of the control device 20 in the hoistway 1. The control device 20 is disposed on the inner side wall portion and is supported by a mounting bracket fixed to the guide rail 3 or the guide rail 6. Further, as shown in the figure, the surrounding area of the existing machine base 19 is covered with a surrounding member 25 such as an iron plate, and the inside of the surrounding member 25 can be regarded as an extension of the hoistway 1.
[0021]
According to such a configuration, since the control device 20 is not installed in the elevator machine room 30, the empty space 30b in the elevator machine room 30 is wider and effective than the empty space 30a described above. Utilization is planned.
[0022]
FIG. 4 is a cross-sectional view showing an elevator machine room that employs an elevator repair method according to still another embodiment of the present invention. The car 2, the counterweight 5 and the guide rails 3, 6 are provided with sheaves at the upper part of the car 2, and the counterweight 5, respectively, while the existing products are diverted, and the latest hoisting machine 13 is installed in the elevator machine room 30. The modification to be arranged is the same as in the previous embodiment, and the detailed illustration of the same part is omitted.
[0023]
In this embodiment, the control device 20 is disposed on the side wall portion in the hoistway 1 and is supported by the mounting bracket fixed to the guide rail 3 or the guide rail 6, and is disposed in the elevator machine room 30. The existing machine bases 19a and 19b are also removed. Thereafter, as shown in the figure, a machine base 27 is fixed in the vicinity of the tops of the existing guide rails 3 and 6, and the hoisting machine 13 is supported on the machine base 27 via the hoisting machine receiving base 14, and the end Brackets 17a and 17b are arranged.
[0024]
Since it is such a structure, when sufficient space is ensured in the upper part of the hoistway 1, all the hoisting machines 13 and end brackets 17a and 17b can be arranged in the hoistway 1, If a sufficient space cannot be secured, the upper portion of the hoisting machine 13 is protruded toward the elevator machine room 30 as shown in the figure, and its surroundings are covered with a surrounding member 26 such as an iron plate. The inside is regarded as an extension of the hoistway 1. According to this embodiment, the empty space 30c in the elevator machine room 30 can be made wider than the empty space 30b shown in FIG.
[0025]
FIG. 5 is a plan view of an elevator machine room that employs an elevator repair method according to still another embodiment of the present invention. The car 2, the counterweight 5, the guide rails 3 and 6, and the machine bases 19 a, 19 b, and 19 c are already used, and the refurbishment of the state-of-the-art hoisting machine 13 in the elevator machine room 30 is performed as described above. The same reference numerals are given to the equivalents of the embodiment shown in FIG. 1, and the detailed description is omitted.
[0026]
In the previous embodiment, the case where the existing elevator was configured by 1: 1 roping was described, but in the present embodiment, the case where the existing elevator was configured by 2: 1 roping will be described. In this case, existing products can be used for the end brackets 22a and 22b for fixing the ends of the main rope. The cradles 23a and 23b are arranged on the upper part of at least two of the existing machine bases 19a, 19b and 19c, and the cradles 23a and 23b are bridged on the upper parts of the cradles 23a and 23b. The cradles 14a and 14b are arranged, and the hoisting machine 13 newly installed is fixed to the upper parts of the hoisting machine cradles 14a and 14b.
[0027]
The structure in the hoistway is the same as that shown in FIG. 1, but the sheaves 9 and 10 of the car 2 and the counterweight 5 can be configured by diverting existing products, respectively. The repair work can be carried out with minor modifications than the described embodiment. Further, as in the case of the embodiment shown in FIG. 1, an empty space 30a can be formed in the elevator machine room 30, and the empty space 30a can be used for other purposes than the elevator. The effective floor area of the building can be expanded.
[0028]
【The invention's effect】
As described above, the elevator refurbishment method according to the present invention uses the existing cars, counterweights and guide rails, attaches sheaves to the upper part of the car and the upper part of the counterweights, and moves up and down via these sheaves. Since the main rope is wound around the new drive unit arranged at the top of the road, the elevator machine room can be substantially reduced to form an empty space. Can be updated.
[Brief description of the drawings]
FIG. 1 is a longitudinal sectional view of an elevator employing an elevator repair method according to an embodiment of the present invention.
FIG. 2 is a plan view showing an elevator machine room of the elevator shown in FIG.
FIG. 3 is a cross-sectional view showing a main part of an elevator adopting an elevator repair method according to another embodiment of the present invention.
FIG. 4 is a cross-sectional view showing a main part of an elevator adopting an elevator repair method according to still another embodiment of the present invention.
FIG. 5 is a plan view showing an elevator machine room of an elevator that employs an elevator repair method according to still another embodiment of the present invention.
FIG. 6 is a cross-sectional view showing a conventional elevator.
7 is a plan view showing an elevator machine room of the elevator shown in FIG. 6. FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Hoistway 2 Riding car 3,6 Guide rail 5 Balance weight 9,10 Sheave 11 Main rope 12 Sheave 13 Hoisting machine 14 Hoisting machine base 17a, 17b End bracket 18a, 18b Base 19a, 19b Machine base 20 Control device 25 Enclosing member 30 Elevator machine room 30a-30c Empty space

Claims (2)

  A guide rail is erected on the hoistway, the carriage and the counterweight that are guided along the guide rail are connected by the main rope, and the drive unit that wraps the main rope is placed in the elevator machine room at the upper part of the hoistway In the elevator repair method for updating the control device and the driving device, the ride car, the counterweight and the guide rail are diverted from existing products, and a sheave is attached to the ride car and the counterweight respectively. The newly installed drive device is attached to the machine base after the existing drive device is removed, and the main rope is wound around the drive device via the sheave and forms an empty space in the elevator machine room. A method for repairing an elevator, characterized in that a wall with a door is provided. A guide rail is erected on the hoistway, the carriage and the counterweight that are each guided along the guide rail are connected by the main rope, and the drive unit around which the main rope is wound is placed in the elevator machine room at the upper part of the hoistway In the elevator repair method for updating the control device and the driving device, the ride car, the counterweight and the guide rail are diverted from existing products, and a sheave is attached to the ride car and the counterweight respectively. The newly installed drive unit is attached to the machine base after the existing drive unit is removed, and the main rope is wound around the drive unit via the sheave and surrounds the periphery of the machine base. An elevator refurbishing method comprising an enclosure member for forming an empty space in a machine room.

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