JP2001233565A - Reparing method for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an elevator reparing method that can renew an existing elevator into a newest type elevator by the use of part of main components thereof without removing the existing elevator. SOLUTION: Guide rails 3, 6 vertically provided in an elevation passage 1, a car 2 guided along the rails 3, 6 and a counterbalance 5, that are parts of an existing elevator, are used. A new hoisting machine 12 is arranged at a lower part of the passage 1. A suspension board at an upper part of the car 2 and the counterbalance 5 is refined and pulleys 9, 10 are mounted thereto, and guide pulleys 14, 15 are supported at an upper part of an existing machine support 19 of an elevator machine room 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for repairing an elevator.

[0002]

2. Description of the Related Art A conventional general elevator repair method will be described with reference to FIG. 7 which is a longitudinal sectional view of an elevator and FIG. 8 which is a plan view of an elevator machine room.

A guide rail 3 for a car for guiding the car 2 and a guide rail 6 for a counterweight for guiding the counterweight 5 are fixed to the hoistway 1 by a plurality of brackets 4 and 7, respectively. The rails 3 and 6 extend from the bottom to the vicinity of the top of the hoistway 1. An elevator machine room 30 is formed in the upper part of the hoistway 1. In this elevator machine room 30, a hoisting machine 40 including a sheave 41, a warp wheel 42 and an electric motor 43 is installed on the machine tables 19a and 19b. Have been. In the elevator machine room 30, a control device 44 for electrically controlling the speed and operation of the car 2 and a car 2 which detects an abnormal increase in the speed of the car 2 as shown in FIG. A governor 21 for operating an emergency stop device (not shown) is provided. Each of the car 2 and the counterweight 5 is provided with a suspending plate (not shown) on the upper part thereof. Both ends of the main rope 11 are connected to both suspending plates via the sheave 41 and the warp wheel 42 of the hoisting machine 40. Each part is fixed. In this way, the main rope 1 is driven by the drive of the hoisting machine 40.
The car 2 is configured to move up and down along the guide rail 3 via the first car 1.

[0004] In such an elevator, repair work is performed for the purpose of updating running performance, display control, and the like to the latest one to reduce power consumption and shorten waiting time. In order to carry out the repair work in a short period of time, the existing equipment is used for the car 2, the counterweight 5, and the guide rails 3, 6, etc., and the elevator machine room 30 is used.
The driving devices such as the control device 44 and the hoisting machine 40 installed in the vehicle are replaced with the latest type.

[0005]

In recent years, in condominiums and other condominiums, common areas such as stairs have not been included in the calculation of the floor area ratio of buildings. In elevators, drive devices have been installed in hoistways. Since the deregulation measures such as may be taken, it is possible to arrange the driving device in the hoistway without forming the elevator machine room 30, and to lift the elevator without imposing a load on the building side. It has been adopted as a standard type.

[0006] However, when an existing elevator is modified to an elevator without an elevator machine room, it is difficult to arrange each device due to insufficient plane dimensions in the hoistway, or the load of the elevator is structurally reduced. In order to upgrade to an elevator without an elevator machine room, it was necessary to remove a set of existing elevators and install a new elevator because the equipment itself could not bear the burden.

An object of the present invention is to provide a method of repairing an elevator in which a part of an existing main equipment can be diverted to be updated to a latest elevator without removing the entire existing elevator.

[0008]

According to the present invention, in order to achieve the above object, a guide rail is erected on a hoistway, and a rider and a counterweight are guided along the guide rail by a main rope. A driving device having a sheave that is connected to the elevator machine room and winds the main rope,
In the elevator repair method for updating the existing drive device to a new drive device, the existing drive device is removed, the new drive device is arranged below the hoistway, and the existing car and the existing car are installed. The sheaves are respectively provided above the counterweights, and two guide sheaves are supported above the hoistway. The main rope is wound around each of the sheaves and the sheave of the driving device. The two ends of the main rope are fixed to the vicinity of the sheave for guide.

According to a method of repairing an elevator of the present invention, a newly installed hoist is arranged at a lower portion of a hoistway, and a sheave is attached to an upper portion of an existing car and a counterweight. With the sheave supported,
Since both ends of the main rope wrapped around each of these sheaves are supported at the top of the hoistway, existing cars can be diverted with only minor modifications to the cars, counterweights and guide rails. Since the core of the car does not change after remodeling, the frame on the landing side and the landing door can be diverted, and the new hoisting machine is installed at the bottom of the hoistway, so the elevator An empty space can be formed in the machine room to be used for other purposes than the elevator.

[0010]

Embodiments of the present invention will be described below with reference to the drawings.

First, the elevator before the repair is constructed as shown in FIG. 7, and a hoistway 1 has a car guide rail 3 for guiding the car 2 and a counterweight guide for guiding the counterweight 5. The rail 6 is fixed by a plurality of brackets 4 and 7, respectively,
Reference numeral 6 extends from the bottom to the vicinity of the top of the hoistway 1.
An elevator machine room 30 is formed above the hoistway 1,
The elevator machine room 30 has a hoistway 1 on its floor.
Machine tables 19a, 1 arranged along the depth direction of the
9b, an existing hoisting machine 40 mounted on the machine bases 19a and 19b, and a separate control device 44 are provided.

FIG. 1 is a longitudinal sectional view of an elevator adopting an elevator repair method according to an embodiment of the present invention.

In repairing the elevator shown in FIG. 7, a car 2 in a hoistway 1, a counterweight 5, guide rails 3, 6 fixed by brackets 4, 7, and a machine table in an elevator machine room 30 19 diverts existing products and removes other main components. Thereafter, new components are added to these diverted existing products, and the refurbishment is completed as shown in FIG. 1. The work procedure will be described below.

As described above, the car 2 in the hoistway 1
After the counterweight 5, the guide rails 3, 6 fixed by the brackets 4, 7 and the machine base 19 in the elevator machine room 30 are diverted from existing products and the other main components are removed, the car 2 and the suspension plates (not shown) provided above the counterweight 5 are remodeled to
Attach each. On the upper part of the existing machine base 19 in the machine room 30, a pair of receiving bases 18 c and 18 d are arranged so as to be orthogonal to these, and fixed by bolting or welding. Cradle 1
8a and 18b, the pedestal 18b is arranged so as to be orthogonal to the machine tables 19a and 19b, whereas the pedestal 18a is arranged so as to be obliquely bridged with respect to the machine tables 19a and 19b. It is fixed by bolting or welding.

An end bracket 17b and a sheave 15 for guide are mounted on an upper portion between the cradles 18c and 18d, and an end bracket 17a and a sheave 14 for guide are mounted on an upper portion between the cradles 18a and 18b. I have. The sheave 15 for guide is a sheave 1 of a newly installed hoisting machine 12 arranged at the bottom of the hoistway 1 which will be described later in detail when viewed in a plan view of FIG.
2a and the sheave 9 provided on the upper part of the car 2 and the sheave 14 for guiding the sheave 12 of the hoisting machine 12.
a and is located between the sheaves 10 provided above the counterweight 5. Further, the end bracket 17a is located above the sheave 9 provided above the car 2 and the end bracket 17b is located above the sheave 10 provided above the counterweight 5.

At the lowermost part of the hoistway 1 in the weight side guide rail 6 which is balanced with the car side guide rail 3, FIG.
As shown in the plan view shown in FIG. 1, a pair of mounting members 13a are mounted across the both, and a pair of receiving bases 13b are fixed so as to bridge between these mounting members 13a. This pair of pedestals 13b is arranged at a position that does not interfere with the existing car-side shock absorber 25a and the existing counterweight-side shock absorber 25b, and a state-of-the-art standard elevator without a machine room on the pedestal 13b. The hoisting machine 12 which is a driving device adopted in the first embodiment is installed, and the guide rails 3 and 6 bear the upward load applied to the hoisting machine 12.

The main rope 11 used for raising and lowering the car 2 by the hoisting machine 12 has one end 11a fixed to an end bracket 17a of an elevator machine room 30, and thereafter,
On the sheave 9 provided on the upper part of the car 2, the vehicle is started up, and then on the sheave 14 for guide provided in the elevator machine room 30,
After being wound around the sheave 12a of the hoisting machine 12 arranged at the bottom of the hoistway 1, it is started up again, hung on the guide sheave 15 provided in the elevator machine room 30, and then provided on the upper part of the counterweight 5. Elevator machine room 3 via the sheave 10
The other end 11b is fixed to the end bracket 17b fixed to 0.

The newly installed control device 20 is disposed on the existing machine bases 19a and 19b in the elevator machine room 30. When operating the elevator from the control device 20 during maintenance work, the newly installed control device 20 Hoisting machine 1 arranged at the bottom
Since the movement of No. 2 can be confirmed by the rotation of the sheaves 14 and 15, there is no problem in safety. The newly installed control device 20 is not limited to the upper part of the existing machine bases 19a and 19b.
It may be arranged around the machine tables 19a and 19b. Also,
At the time when the existing elevator was installed, the Building Machinery Law stipulated that the area of the elevator machine room 30 was required to be at least twice as large as the projected area of the hoistway. Space 3 inside
Since the space 0a is formed, the empty space 30a can be used for purposes other than the elevator by providing the wall 24 with the door at the boundary between the two rooms.

According to such an elevator repair method, the drive device including the newly installed hoisting machine 12 is disposed below the hoistway 1, and the sheaves 9 and 10 are provided above the car 2 and the counterweight 5, respectively. And the guide sheaves 14 and 15 are supported on the existing machine stands 19a and 19b, so that the car 2, the counterweight 5, the guide rails 3, 6 and the machine stand 19 are only slightly modified. Products can be diverted. Since the existing car 2 can be diverted, the governor 21 shown in FIG. 2 installed in the elevator machine room 30 can also be diverted, and the core of the car 2 remains unchanged after the remodeling, so that the unillustrated landing side is located. Frames and landing doors can be reused as they are. In addition, the latest type of standard elevator without machine room does not bear the load on the building side, but in the case of renovation, the existing building is designed considering the load, There is no problem even if a load acts on the existing machine tables 19a and 19b.
Furthermore, the empty space 30a newly formed in the conventional elevator machine room 30 can be used for other uses other than the elevator, so that the effective floor area of the building is expanded and the asset value of the building is reduced. Can be improved.

In the present embodiment, guide sheaves 14 and 15 newly installed in the elevator machine room 30 are mounted on the existing machine stands 19a and 19b.
A different machine base may be provided in addition to a and 19b, and may be installed thereon. Further, the sheaves 14 and 15 for guide and the end brackets 17a and 17b are also arranged above the machine stands 19a and 19b. However, if the top gap at the upper part of the hoistway 1 is sufficiently secured, the machine stand 19a is used. , 19b. In this case, the control device 20 or the governor 2
1 may be arranged in the hoistway 1, and the upper portions of the machine tables 19a and 19b may be hidden by an iron plate or the like.

FIG. 4 is a sectional view of an elevator machine room adopting an elevator repair method according to another embodiment of the present invention.

In the above embodiment, the newly installed control device 20
Is arranged in the elevator machine room 30, but if there is a space for installing the control device 20 in the hoistway 1, the mounting bracket is fixed to the guide rail 3 or the guide rail 6, and this mounting bracket is used. A control device 20 (not shown) is attached to a side portion inside the hoistway 1. At this time, the existing machine tables 19a,
Surrounding members including the upper part of 19b are surrounding members 25 such as an iron plate.
And the inside of the surrounding member 25 can be regarded as an extension of the hoistway 1.

If the elevator is modified to have such a configuration, the empty space 3 in the conventional elevator machine room 30 is used.
0b can be formed also in the upper part of the surrounding member 25, so that it is wider than the empty space 30a described above, so that the effective floor area in the building can be expanded and the asset value of the building can be improved. it can.

FIG. 5 is a sectional view of an elevator machine room employing an elevator repair method according to still another embodiment of the present invention.

As in the embodiment shown in FIG.
The control device 20 is attached to the side of the inside, and the existing machine bases 19a and 19b are removed and the guide rails 3 and 3 are removed.
6, a mounting member 27 is fixed to the upper portion of the mounting member 27, and the sheaves 14 and 15 for guides and the end brackets 17 a and
17b is attached. At this time, if the top gap at the top of the hoistway 1 is sufficiently ensured, the sheave 1 for guide is used.
All the end brackets 4 and 15 and the end brackets 17a and 17b may be arranged in the hoistway 1, but if they cannot be sufficiently secured, the upper portions of the sheaves 14 and 15 for guiding are installed as shown in FIG. When the protruding member 30 protrudes into the inside, the periphery thereof is covered with a surrounding member 26 such as an iron plate, and the inside of the surrounding member 26 can be regarded as an extension of the hoistway 1.

If the elevator having such a configuration is modified, the empty space 30c formed in the conventional elevator machine room 30 becomes empty spaces 30a and 30 described above.
b, the effective floor area inside the building increases, and the asset value of the building can be further improved.

FIG. 6 is a plan view of an elevator machine room employing an elevator repair method according to still another embodiment of the present invention.

In the above embodiment, the existing elevator is:
Although the case where the elevator is configured by one roping is shown in FIG. 6, the existing elevator is configured by 2: 1 roping. Also in this embodiment,
Basically, the hoisting machine 12 is arranged at the lower part of the hoistway 1, and the sheaves 9, 9 are provided above the car 2 and the counterweight 5, respectively.
10 is mounted, and the car sheaves 2, the counterweights 5, the guide rails 3, 6, and the machine stand 19 are configured to support the sheaves 14 and 15 for guiding on the existing machine stands 19a to 19c.
Are common in that existing products are diverted with only minor modifications.

In the elevator machine room 30, the main rope 11
The end brackets 17a and 17b for fixing the end portions of the present embodiment are diverted from existing products, and have different indication configurations. Therefore, the different portions will be described. Existing machine tables 19a, 19
b, 19c are arranged almost in parallel,
end bracket 17 so as to bridge between
a and 17b are arranged and fixed, and the receiving bases 23a, 23b, 23c and 23 are bridged so as to bridge between the machine bases 19b and 19c.
d is arranged and fixed. Of which cradle 23b, 2
3c and 23d are arranged substantially perpendicularly and parallel to the machine tables 19b and 19c, while the receiving table 23a is
They are arranged so as to be inclined with respect to 9b and 19c.

A guide sheave 15 is rotatably supported between the cradles 23c and 23d, and a guide sheave 14 is rotatably supported between the cradles 23a and 23b. The guide sheave 15 has a counterweight 5 when viewed in plan.
Is located on a line connecting the sheave 10 provided above the sheave 10 and the sheave 12a of the hoisting machine 12, and the guiding sheave 14 is, when viewed in a plan view, the same as the sheave 12a of the hoisting machine 12. It is located on a line connecting the sheaves 9 provided at the upper part of the car 2.

The structure inside the hoistway 1 is almost the same as that shown in FIG. 1, but the car 2 and the sheaves 9 and 10 of the counterweight 5 use existing products which have been used so far. Therefore, the renovation work can be completed with minor modifications compared to the embodiment described with reference to FIG. Further, since the control device 20 is supported on the machine tables 19a to 19c as in the case of the previous embodiment, an empty space 30a can be formed in the elevator machine room 30, and the elevator machine room 30 If the wall 24 with a door is provided between the empty spaces 30a, the empty spaces 30a can be used for other purposes unrelated to the elevator.

[0032]

As described above, in the elevator repair method according to the present invention, the drive device including the newly installed hoist is arranged at the lower part of the hoistway, and the sheaves are respectively provided above the existing car and the counterweight. In addition to attaching the guide sheave to the upper part of the hoistway, and supporting both ends of the main rope wrapped around these sheaves at the upper part of the hoistway, the car, the counterweight and The guide rails can be diverted from existing products with only a few modifications, and since the core of the car does not change after the modification by reusing the car, the frame on the landing side and the landing door can be diverted, In addition, since the newly installed hoist is installed at the lower part of the hoistway, an empty space is formed in the elevator machine room, which can be used for purposes other than the elevator.

[Brief description of the drawings]

FIG. 1 is a cross-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 in the elevator shown in FIG.

FIG. 3 is a plan view showing a lower portion of a hoistway of the elevator shown in FIG. 1;

FIG. 4 is a cross-sectional view of an elevator machine room employing an elevator repair method according to another embodiment of the present invention.

FIG. 5 is a cross-sectional view showing an elevator machine room employing an elevator repair method according to still another embodiment of the present invention.

FIG. 6 is a plan view showing an elevator machine room adopting an elevator repair method according to still another embodiment of the present invention.

FIG. 7 is a sectional view showing a conventional elevator.

FIG. 8 is a plan view of an elevator machine room in the elevator shown in FIG.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 hoistway 2 elevator car 3, 6 guide rail 5 counterweight 9, 10 sheave 11 main rope 12 hoisting machine 13 a, 27 attachment member 14, 15 guide sheave 17 a, 17 b end bracket 19 machine base 26 surrounding member 30 Elevator machine room 30a Empty space

Claims (6)

[Claims] 1. A guide rail is erected on a hoistway, and a car and a counterweight which are respectively guided along the guide rail are connected by a main rope, and are arranged in an elevator machine room to wind the main rope. A method for repairing an elevator, comprising a driving device having a sheave to be hung, and updating the existing driving device to a new driving device, wherein the existing driving device is removed and the new driving device is placed below the hoistway. The sheaves are arranged, and the sheaves are respectively provided above the existing car and the existing counterweight, and two guide sheaves are supported above the hoistway. A method for repairing an elevator, characterized in that the main rope is wound around the sheave, and both ends of the main rope are fixed near the guide sheave. 2. The elevator machine room according to claim 1, wherein an upper portion of the guide sheave and a periphery thereof are covered by a surrounding member, and the inside of the surrounding member is the elevator machine room located above the hoistway. A method of repairing an elevator, wherein an outside of the surrounding member is an empty space of the elevator machine room. 3. The guide line according to claim 1, wherein the existing driving device is supported on an existing machine base, and the guide rope is mounted on the existing machine room base after removing the existing driving device. An elevator repair method characterized by supporting each car. 4. The apparatus according to claim 1, wherein the existing driving device is supported on an existing machine base, and the main cable is mounted on the existing machine room base after removing the existing driving device. An elevator repair method characterized by supporting both ends. 5. The apparatus according to claim 1, wherein a mounting member is fixed to the existing guide rail located near a lower portion of the hoistway, and the new driving device is disposed on the mounting member. Elevator renovation method. 6. The device according to claim 1, wherein a mounting member is fixed to the existing guide rail located near an upper portion of the hoistway, and both ends of the guiding sheave and the main rope are fixed to the mounting member. The method of repairing an elevator characterized by supporting each of the following.