JPH0986824A - Modification method of elevator door opening and closing device - Google Patents

Abstract

(57) [Abstract] [Purpose] To provide a method for modifying an elevator door opening / closing device that can be modified at a low cost by shortening the continuous stoppage period during the modification work of the elevator. [Structure] Replacing the existing engaging device 7 of the elevator car door opening / closing device with a new part other than the existing engaging device 7 and connecting by a link device so that the existing engaging device 7 is operated by the replaced drive part, By diverting the existing engagement device 7, the elevator continuous stop time was shortened and the cost was reduced.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of modifying an elevator door opening / closing device.

[0002]

2. Description of the Related Art Generally, an elevator door opening / closing device has 15
It is difficult to maintain its performance and function due to wear or deterioration over 20 years.
It will be necessary to replace it with a new one. However, due to technological progress during the years, the structure and method of the existing door opening / closing device and the new door opening / closing device are often significantly different. The devices must always be used in pairs.

For example, FIG. 4 is a front view of the floor side door opening / closing device as seen from the car side. The floor side having a floor side door hanger 3 movable along a door rail 1 fixed to a building wall. The door lock shaft 4d is attached to the door 2 by the push spring 4e.
Has a door lock 4c biased in the counterclockwise direction, and this door lock 4c is engaged with a locking piece 5a provided on a door lock switch 5 fixed to a three-way frame, whereby the floor side door 2 Is locked.

As shown in FIG. 3, a movable engagement roller 7b is arranged facing the fixed engagement roller 7a in the engagement device portion of the car side door opening / closing device, and the movable engagement roller 7b is attached. The lever 7c is rotatably configured with respect to the lever shaft 7e, and a roller 7d is attached to an intermediate portion in the axial direction of the lever 7c to configure an engaging device 7. The engaging device 7 includes a mounting bolt 7f. Is attached to the car side door 6. When the car door 6 starts to open, the cam link 8 rotates counterclockwise around the cam link shaft 8a as a fulcrum to push up the roller 7d, whereby the movable engagement roller 7b attached to the lever 7c moves the lever shaft 7e. It is driven in a direction approaching the fixed engagement roller 7a at the center. When the movable lever 4a and the fixed lever 4b of the floor side engaging element 4 shown in FIG. 4 are sandwiched between the fixed engagement roller 7a and the movable engagement roller 7b against the force of the pressing spring 4e, the door lock 4c is locked. Rotates clockwise around the door lock shaft 4d to disengage from the lock piece 5a, and the floor side door 2 is locked.

FIG. 5 shows a flowchart of a conventional method of modifying an elevator door opening / closing device. First, the floor side work is performed, but in a steady state, the door lock 4c is normally urged counterclockwise about the door lock shaft 4d by the push spring 4e to engage with the locking piece 5a, thereby the floor side. The door 2 is held in a locked state. After removing the floor-side engaging element 4 and the door lock switch 5 shown in FIG. 4 and the floor-side door hanger 3 movable along the door rail 1 fixed to the building wall, the floor-side door 2 is removed. Locally processed to install the floor hanger on the floor of the new installation, and the floor side engager and door lock switch for the new installation. After performing these operations for all floors from the top floor to the bottom floor, next, the car side work is performed. For this car side work, remove the wiring of the car side door machine, remove the car side door link with the engagement device left, remove the door motor and door opening and closing drive unit together with the base, and then install the new door motor and door opening and closing. Attach the drive unit together with the base, attach the new product car side door link,
After that, wiring of the car side door machine is performed, trial run adjustment is performed, and modification work of the elevator door opening / closing device is completed.

However, once the remodeling is started, the floor-side engaging elements and the car-side engaging devices must always use a pair of constructions, so that all floor-side and car-side remodeling is performed. The elevator cannot be operated until the end of. For this reason, in a high-rise building with many floors, the amount of remodeling work on the floor side is large, and the continuous elevator suspension period becomes a great number of days, which causes immeasurable inconvenience to the elevator users. This is a serious problem for a small building where only one stand is installed. For this reason, as described in JP-A-4-3333483, the passenger side door opening / closing device is replaced with a new door opening / closing device and is engaged with the existing engaging element of the floor side door opening / closing device. The first step of attaching the first attachment to the new engagement device of the newly installed car side door opening and closing device, and the first attachment being removed to engage with the engagement device of the new car side door opening and closing device The second step of sequentially attaching the attachments of No. 2 to the existing floor-side door opening and closing device for each floor, and removing the second attachment,
An elevator remodeling method has been proposed in which the existing floor-side door opening / closing device is divided into a third step in which each floor is replaced with a new door opening / closing device so that the elevator can be operated between each process. .

[0007]

However, in the conventional method of modifying the elevator door opening / closing device, the use of the special attachment as described above can shorten the continuous stop period of the elevator. Since the amount of work for installing and removing the doors is added, the overall cost of remodeling will inevitably increase compared with the case of replacing the door opening / closing devices on the car side and the floor side at the same time. I will end up.

It is an object of the present invention to provide a method of modifying an elevator door opening / closing apparatus that can be modified at a low cost while shortening the continuous stop period.

[0009]

In order to achieve the above object, the present invention provides a floor by engaging an engaging device of a car door opening / closing device of an elevator with an engaging element of a floor side door opening / closing device. In a method of modifying an elevator door opening / closing device in which the side door is unlocked and the car side door and the floor side door are opened / closed in cooperation with each other, the existing engagement device of the car side door opening / closing device and the floor Except for the existing engaging elements of the floor side door opening / closing device, other parts of the car side door opening / closing device are replaced with new products, and then the existing existing engaging device that has been diverted is newly installed on the car side door opening / closing device. It is characterized in that it is connected by a link mechanism so as to operate at.

[0010]

In the method for modifying the elevator door opening / closing device according to the present invention, when the drive part of the car door opening / closing device is replaced with a new one as described above, the existing engaging device is used as it is. Since there is no need to modify the existing floor-side door opening / closing device and only the car-side door opening / closing device excluding the engagement device is modified, the continuous suspension period in the elevator modification work can be shortened and the cost can be modified at low cost. Can be done.

[0011]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 2 is a front view of the car door opening / closing device after being modified by the method for modifying the elevator door opening / closing device according to the embodiment of the present invention, as viewed from the floor side. On the base 10 attached to the car frame support member 9, the door motor 11 and
A door opening / closing drive device 12 having a reduction pulley 14 connected to the door motor 11 via a connecting belt 15 and a link fulcrum member 13 are installed to configure a drive portion of the new car side door opening / closing device. On the other hand, the existing engagement device 7 attached to the existing car side door 6 is used as it is, and one end of the link fulcrum member 13 can be used to operate the existing engagement device 7 with the new car side door opening / closing device. The other end of the connecting link 16 whose one end is connected to the reduction pulley 14 is connected to the intermediate part of the main link 17 which is rotatably supported, and one end of the second door link 18 is also connected, and the other end of the main link 17 is also connected. The cam link 8 is connected to. The cam link 8 is configured to operate by the newly installed car side door opening / closing device via the above-described link mechanism to operate the existing engagement device 7.

Next, a method for modifying the elevator door opening / closing device shown in FIG. 2 will be described with reference to the flowchart shown in FIG. First, in step S1, the wiring of the car side door machine is removed, then in step S2, the car side door link is removed while the existing engagement device 7 is left on the car side door, and then in step S3, the door motor and The door opening / closing drive is removed together with the base, and the existing car door opening / closing device is removed. Then, in step S4, the drive unit of the new car side door opening / closing device including the new door motor 11 and the new door opening / closing drive device 12 already installed in the manufacturing plant is attached to the new base 10.
In step S5, the main link 17 of the car side door is attached. The main link 17 is rotatably supported at one end by the link fulcrum member 13, and the other end of the connecting link 16 having one end connected to the speed reduction pulley 14 is connected to the intermediate portion thereof, and the second door link 18 is also provided. Are connected at one end. The cam link 8 is connected to the other end of the main link 17, and the existing engagement device 7 can be operated via the cam link 8. Wiring is performed in the next step S6, and step S
The trial run adjustment is carried out in 7 and the remodeling work is completed.

In this way, the existing engagement device 7 is diverted as it is, and the existing engagement device 7 is actuated by the newly installed new car side door opening / closing device, via the link mechanism such as the cam link 8. Since the existing engagement device 7 and the new car side door opening / closing device are connected, it is possible to deal with them only by changing the simple link mechanism according to the existing engagement device 7. It is no longer necessary to replace the engaging element and door lock switch of the floor-side door opening / closing device, which had to be replaced due to the different engagement structure, and shortened the continuous stoppage period in the elevator remodeling work, and remodeled at low cost. can do.

Although the existing engaging device 7 is used as it is in the above-described embodiment, it may be replaced with a new installed product having the same structure as the existing product.

[0015]

As described above, in the method for modifying the elevator door opening / closing device according to the present invention, since the existing engagement device of the car side door opening / closing device is used, the existing floor side door opening / closing device is modified. This eliminates the need for the elevator, shortens the continuous stoppage period in the elevator remodeling work, and allows remodeling at low cost.

[Brief description of drawings]

FIG. 1 is a flowchart showing a method of modifying an elevator door opening / closing device according to an embodiment of the present invention.

FIG. 2 is a front view of the car door opening / closing device of the method for modifying the elevator door opening / closing device according to the embodiment of the present invention, as seen from the floor side.

FIG. 3 is a detailed view showing the engagement device portion of the car door opening / closing device of FIG. 2 in an enlarged manner.

FIG. 4 is a front view of a floor side door opening / closing device of a general elevator door opening / closing device as viewed from the car side.

FIG. 5 is a flowchart showing a method of modifying a conventional elevator door opening / closing device.

[Explanation of symbols]

 1 Existing floor-side door 4 Existing floor-side engaging element 6 Existing car-side door 7 Existing car-side engaging device 10 Base 11 New door motor 12 New door opening / closing drive device

Claims (1)

[Claims] 1. The lock of the floor side door is unlocked by engaging the engagement device of the elevator car side door opening / closing device with the engagement element of the floor side door opening / closing device, and the car side door and the car side door In a method for modifying an elevator door opening / closing device in which a floor side door is opened / closed in conjunction with each other, the above-mentioned boarding operation is performed by leaving an existing engagement device of the car side door opening / closing device and an existing engagement member of the floor side door opening / closing device. The other part of the car door opening / closing device is replaced with a new one, and then the existing engagement device that has been diverted is connected by a link mechanism that operates with the newly installed car side door opening / closing device. Elevator door opening and closing device modification work method.