JP2002265165A - Renewal construction method for elevator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a renewal construction method for an elevator capable of renewing an elevator without requiring removal of an existing guide rail and an existing bracket when a car of a new elevator has a smaller outer size than a car of an existing elevator. SOLUTION: When the car of the new elevator has a smaller outer size than the car of the existing elevator, the existing guide rail 1 and the existing bracket 2 are left and a new guide rail 3 and a new bracket 4 are supported by at least one of the existing guide rail 1 and the existing bracket 2. By this, costs and labor required for removal of the existing guide rail and the existing bracket can be reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator renewal method for removing an existing elevator and replacing it with a new elevator.

[0002]

2. Description of the Related Art In general, elevator renewal is a design renewal that emphasizes the design and replaces only the design products of the entrance and the car, a control renewal that uses existing equipment as much as possible and improves the riding comfort. There is a partial renewal and a removal renewal that replaces the entire elevator by aging.

[0003] Among the above-mentioned removal renewals, a quasi-removal renewal in which guide rails and entrance / exit devices are diverted, others are removed and replaced with new elevators,
There is a total removal renewal in which all parts are removed and replaced with a new elevator.

[0004] In the above-mentioned complete removal and renewal, in order to reduce the product cost, individual design changes are not made according to the existing rail size and mounting position, and a standard type of a current type as a newly installed elevator is used. The elevator is adopted. For this reason, it is common to remove all the existing guide rails and brackets installed in the hoistway, regardless of the difference in the size of the car between the existing product and the new product.

FIG. 2 is a cross-sectional view showing a state in which an elevator guide rail is mounted in this type of conventional renewal.

An existing guide rail 1 for guiding a car or a counterweight (not shown) of an existing elevator is connected to an existing bracket 2 fixed to an hoistway wall 5 by anchor bolts 6 via rail clips 7, bolts 8 and nuts 9. Installed.

[0007] In the conventional renewal, the existing guide rail 1 and the existing bracket 2 are removed, respectively, and thereafter, the centering work is performed, and the new bracket 10 is fixed to the hoistway wall 5 with the anchor bolts 6. The new guide rail 3 is mounted on the rail 10 via rail clips 7, bolts 8 and nuts 9.

[0008]

By the way, in the above-mentioned conventional elevator renewal method, whatever the outer dimensions of the car of the new elevator, that is, the outer dimensions of the new car are larger than those of the existing car. The existing guide rails 1 and the existing brackets 2 are each removed even when the distance between the new guide rails becomes smaller and the distance between the opposing new guide rails becomes smaller than before. And this removal work requires cost and labor.

The present invention has been made in view of such a situation in the prior art, and an object of the present invention is to provide an existing guide rail and an existing bracket when a car of a new elevator has an outer dimension smaller than that of an existing elevator. It is an object of the present invention to provide an elevator renewal method which can be renewed without having to remove the elevator.

[0010]

In order to achieve this object, the present invention relates to a method of renewing an elevator in which an existing elevator is removed and replaced with a new elevator, wherein a car of the new elevator is a car of the existing elevator. When having a smaller outer dimension, the guide rails and brackets of the existing elevator are left, and at least one of these guide rails and brackets is configured to support the guide rails and brackets of the new elevator.

According to the present invention configured as described above, when the car of the new elevator has an outer dimension smaller than that of the existing elevator, the guide rails and brackets of the existing elevator are left in the existing state, At least one of the guide rail and the bracket supports the guide rail and the bracket of the new elevator. Thereby, when the car of the new elevator has an outer dimension smaller than that of the car of the existing elevator, the renewal can be performed without removing the existing guide rail and the existing bracket.

[0012]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the elevator renewal method of the present invention will be described below with reference to the drawings.

FIG. 1 is a cross-sectional view showing an embodiment of an elevator renewal method according to the present invention. The same components as those shown in FIG. 2 are denoted by the same reference numerals. That is, 1 is an existing guide rail, 2 is an existing bracket, 3 is a new guide rail, 5 is a hoistway wall, 6 is an anchor bolt, 7 is a rail clip, 8 is a bolt, and 9 is a nut.

As shown in FIG. 1, the elevator renewal method according to the present embodiment uses an existing guide rail 1 and an existing bracket 2 when a car (not shown) of a new elevator has an outer dimension smaller than that of a car (not shown) of an existing elevator. And at least one of the existing guide rail 1 and the existing bracket 2, for example, the existing bracket 2 supports the new guide rail 3 and the bracket 4.

In this embodiment, when the car (not shown) of the new elevator has an outer dimension smaller than that of the car (not shown) of the existing elevator, the existing guide rail 1 and the existing bracket 2 are not removed and the centering work is performed. After that, the new bracket 4 is temporarily fixed using the rail clips 7, bolts 8 and nuts 9 that have fixed the existing bracket 4, and then the new guide rail 3 is attached to the new bracket 4 and the other rail clips 7 , Bolts 8 and nuts 9. Thereafter, final centering adjustment is performed, and the new bracket 4 and the existing bracket 2 are fixed by welding.

In the embodiment configured as described above, when the car of the new elevator has an outer dimension smaller than that of the car of the existing elevator, renewal can be performed without removing the existing guide rail 1 and the existing bracket 2. it can.

[0017]

As described above, according to the present invention, when the car of the new elevator has an outer dimension smaller than that of the existing elevator, the renewal is performed without removing the existing guide rail and the existing bracket. As a result, the cost and labor for removal can be reduced. In the conventional work, the distance between the rear surface of the rail and the hoistway wall differs depending on the mounting position, so the number of types of brackets has increased and time has been required for manufacturing. However, in the present invention, the centering mounting has already been performed. Since the new bracket is attached to the existing guide rail or the existing bracket, this new bracket can be used in one type, and there is no need to measure the dimensions on site, so the time and cost can be further reduced. it can. Further, the centering work of the newly provided guide rail can be performed with reference to the existing guide rail, so that the centering work can be easily performed.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view showing an embodiment of an elevator renewal method according to the present invention.

FIG. 2 is a cross-sectional view showing a state in which an elevator guide rail is mounted in a conventional renewal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Existing guide rail 2 Existing bracket 3 New guide rail 4 New bracket 5 Hoistway wall 6 Anchor bolt 7 Rail clip 8 Bolt 9 Nut

Claims (1)

[Claims] 1. An elevator renewal method for removing an existing elevator and replacing the existing elevator with a new elevator, wherein a car of the new elevator has an outer dimension smaller than that of the existing elevator, and a guide rail of the existing elevator and While leaving the bracket,
An elevator renewal method, wherein at least one of the guide rail and the bracket supports a guide rail and a bracket of a new elevator.