JPS61111289A - Temporarily mounted operating device for elevator - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial Application Field] The present invention relates to an operating device that is temporarily installed when existing elevator equipment is removed and repaired.

[Conventional technology]

In recent years, demand for replacing aging elevators has been increasing. In order to meet this demand, the most important point is to shorten as much as possible the unusable period f of elevators due to elevator renovation work. In other words, the renovation work involves replacing the hoisting machine, which is subject to deterioration and wear and tear, and the control device, whose performance can be improved through computerization, etc., with a new one, and replacing the machine platform and hoistway where the hoisting machine was installed. Structural members such as the car frame that forms the framework of the installed car and the guide rails that guide the elevator up and down of the car will be left in place and reused. For example, Japanese Patent Application Laid-Open No. 59-1086 provides a temporary operating system for carrying out such repair work using existing elevators without constructing scaffolding in the hoistway.
What is shown in Publication No. 71 has been proposed. This is the fifth
This will be explained using figures.

In the figure, (1) is a machine room, (2) is a machine stand made of horizontal members such as H-beams installed in parallel on the floor of the machine room (1), and (3) is a machine stand (2 ), a hoisting machine installed on top of (
4) is the existing control panel to be removed, (5) is the hoistway, and (6) is the existing control panel that will be removed.
) is the basket, (7) is the balance weight 9, (8) is the hoisting machine (3
), with a heel (6) attached to one end and a counterweight (7) attached to the other end; αO is the guide rail for the car that guides the counterbalance weight (7), αη is the guide rail for the comb weight P that guides the counterweight (7), αη is the machine room (1)
(2) A temporary operation panel is installed at the base (6), and port 0 is a cable that connects the operation device (B), the hoisting machine (3), and the operation panel (2).

That is, the operator rides on the heels (6) and operates the operation panel (2) to operate the hoist (2) via the operating device (2).
3) to raise and lower the car (6).

Therefore, even if the control panel (4) is removed, there is no problem in raising and lowering the car (6). In this way, workers can remove and install new landing devices in the hoistway (5), landing and car door opening/closing mechanisms, operation panels and position indicators in the landing and cars. It is possible.

[Problem that the invention seeks to solve]

! ” In the above-mentioned temporary elevator operation system, the existing hoisting machine (3) is used to raise and lower the heel (6), so it is not possible to remove hoisting machine 1 (3) for the time being. However, since the hoisting machine (3) must be removed eventually, there is a problem in that the period for repairing the machine room is extended accordingly.

This invention was made to solve the above problem, and the removal and new construction of equipment and members in the machine room and hoistway are carried out simultaneously and in parallel, and the hoisting machine and parts are removed and installed in the machine room. To provide a temporary operation device for an elevator that can raise and lower an existing car even when a control panel is being moved and can be applied to high lifts.

[Means for solving problems]

The temporary operation device for an elevator according to the present invention includes a first lifting device at the top of a hoistway or a machine room, and a first lifting device above a car.
A second lifting device is installed to unwind and unwind the rope of the lifting device, and one of the first and second lifting devices is driven so that the rope is wound up or unwound to a predetermined length. and the other.・ [Function] In the elevator temporary operation device according to the present invention,
Since one of the first and second lifting devices is driven and then the other is driven, the length of the rope minus 1, that is, the lifting height, is approximately twice that of a single lifting device.

〔Example〕

Figures 1 to 4 show an embodiment of this invention, and (1) to 4.
(6) is the same as in FIG.

Figures 1 and 2 are vertical cross-sectional views of the hoistway.
is a suspended body suspended on a support member (to) and projects into the hoistway (5) through the floor of the machine room (1), and (17) is a suspended body αQ
The first lifting device is fixedly attached to the lower end of the hoist, and in this embodiment a winch with a winding drum is used. (To) Hakato (6
) is the standing pillar that makes up the car frame that supports the car frame, α is the standing pillar (to)
The upper end of the upper end is fixed to 9αe, and the upper end is a second lifting device that has the same function as the first lifting device αη, and also uses a winch. ■D is a rope whose both ends are wound around the first and second winches Q″t) and the winding drum of (1), and (A) is a rope installed on the upper beam and maintenance operation of the car (6). The operation panel used for this is the car door that opens and closes the entrance/exit (6), (c) is the landing entrance, and (to) is the landing door that opens and closes the landing entrance/exit.

Figure 3 is an electrical circuit diagram, (to) is the operating circuit, (a), H
is a DC power supply, (22D) is a down button provided on the operation panel @, (22U) is also an up button, and (ID) is a rope QD'' that connects the winding barrel of the first winch αη when energized.
fI - the first winch down-operation relay that drives in the rewinding direction, (lDa) is its normally open contact, and (2D) when energized, rewinds the second winch's winding barrel to the rope (1). The second winch lower operation relay drives in the direction (2
Da) is the normally open contact, and (2U) is the rope that connects the winding body of the second winch when it is energized? The second winch upper operation relay drives υ in the winding direction, (zua) is its normally open contact, and (IU) when energized, connects the winding barrel of the first winch aη to the rope 6! (IUa) is the normally open contact of the first winch upward operation relay that drives D in the winding direction, (
IB) is a brake coil that, when energized, releases an electromagnetic brake (not shown) that restrains the winding drum of the first winch (iη), and when the brake coil (IB) is deenergized, the winding drum is restrained again. (2B) is the brake coil (IB)
Brake coil for the second winch (to) similar to (
IDS1) is the first winch down position switch that opens when the rope Q°C wound around the winding drum of the first winch αη is rewound to a predetermined length, and (lDa2) is the first winch down position switch that is also closed. Position switch, (2DS
) is the second winch down position switch that opens when the rope Qυ is unwound to a predetermined length from the second winch α force, and (2081) is the rope I2 which was unwound from the winding barrel of the second winch head]) 2nd winch up position switch that opens when wound up to a predetermined length (2US2)
is the second winch top position switch which also closes, (1
178) is a first winch upper position switch that opens when the rope eυ is wound up to a predetermined length on the first winch αη.

In addition, position switches (IDsI), Dnsz),
(xUs) is the position switch (2US1), (2σS2) at the t1th winch αη.

(2DS) are each built into the second winch handle.

Figure 4 is an explanatory diagram of operation 1 @ order, and the basket (6) is at the top position p.
Each operation relay (1D), (2n
), (zU), Dσ) and each position switch (ID51)
, (In52), (2D8), (2σ81), (2
[JS2), (l[indicates the closed interval of Js3.

Next, the operation of this embodiment will be explained.

Assuming that the car (6) is now in the uppermost position p1, the rope 21) is wound around the winding drums of the first and second winches aη and ω, respectively. Each position switch (IDsI
), (lDa2), (2DS), (2σsx), (2a
s2) and (HJs) are in the state shown in FIG.

Further, the winding drums of the first and second winches (1?) and m are restrained by electromagnetic brakes.

Here, if the down button (2211) is kept pressed,
The first winch downward operation relay (ID) is energized and the contact (lDa) is closed, so the brake coil (IB)
is energized and the winding drum of the first winch αη is released.

゛, Now the rope Q]) is rewound, so
The car (6) descends. When the rope CD is unwound to the limit from the first winch αη (midway position p2), the first winch lower position switch (IDsI) is opened, the driving relay (ID) is deenergized, and the contact (lDa) is opened, so the brake coil (IB) is deenergized and the drum of the first winch αη is stopped and restrained.

On the other hand, the first winch lower position switch (IDS2) is closed, so (g) - (22D) - (lDa2) -
(2DS) - (2D) - (to) circuit, the second winch lower operation relay (2D) is energized, and the contact (2Da
) is closed. Now, the brake coil (2B) is energized and the winding barrel of the second winch (1) is released, so
The rope is unwound from the second winch and the car (6) is lowered further.

The rope (
When the winch lower position switch (2DS) is reeled back, the second winch lower position switch (2DS) is opened and the driving relay (2D) is deenergized.
Since the contact (2Da) is opened, the brake coil (2Da) is opened.
B) is deenergized and the winding barrel of the second winch is stopped and restrained.

When the up button (2217) is pressed continuously, the second winch upper operation relay (2U) is energized, and the winding drum of the second winch (1) is released as in the case of the lower winch.
As the rope (goods) is wound up, the basket (6) rises. Similarly, when the rope shear D is wound up at an intermediate position p2t, the winding drum of the second winch is stopped and restrained, and the first winch (1) is driven instead, and the rope Qυ is and the car (6) rises.

In addition, keep pressing the down button (22D) and return to the basket (6).
When the car is descending between the highest position p1 and the intermediate position p2, if you release the lower button (22D), the first winch lower 9 operation relay (ID) is deenergized and the car (6) stops. . Here, when the up button (22U) is pressed, the position switch (2σS1) is opened and the position switches (2σ82) and (lσS) are closed, so (
g) − (22σ) − (2US2) = (lσs) −
In the circuit of (1σ)-(→, the first winch upward operation relay (IU) is energized, and the car (6) reverses and ascends.

Since the reversing operation in other sections is the same, detailed explanation will be omitted.

By configuring as described above, the length of the rope 31J can be almost twice that of one winch.
It can also handle high head.

The first winch αη is suspended from the machine stand (2) by a suspension member a, because the machine stand (2) is a member that will not be removed during repair work. This eliminates the need to newly install the suspension body QllG, which is a strength member, in the machine room (1) or hoistway (5).

In addition, if there is suitable space in the machine room (1),
The winch αη is not suspended on the machine stand (2), but is
) can also be installed.

〔Effect of the invention〕

As described above, in this invention, the first lifting device is installed at the top of the elevator hoistway or in the machine room, and the second lifting device is used to unwind the rope of the first lifting device over the car. Each device was installed, one of the first and second lifting devices was driven, and when the rope was wound up or unwound to a predetermined length, the other was driven. The removal of equipment and parts and the construction of new ribbons are carried out at the same time, which not only shortens the period of repair work for the machine room, but also has the effect of being applicable to buildings with high heights.

[Brief explanation of drawings]

FIGS. 1 to 4 are diagrams showing an example of a temporary operation device for an elevator according to the present invention, and FIG. 1 is a vertical cross-sectional view of a hoistway;
Fig. 2 is a sectional view taken along the line U-■ in Fig. 1, Fig. 3 is an electric circuit diagram, Fig. 4 is an explanatory diagram of the operating sequence of Fig. 3, and Fig. 5 is a lifting/lowering diagram showing a temporary operation device for a conventional elevator. FIG. In the figure, (1) is the machine room, (5) is the hoistway, <6) is the ld car, αη is the first lifting device (winch), and (to) is the second
The lifting device (winch 3, @I) is a rope, (to)
is the driving circuit. Note that the same reference numerals in the figures indicate the same parts.

Claims (1)

[Claims] (1) A first lifting device installed in the machine room at or above the top of the hoistway for winding and unwinding the rope; An elevator comprising: a second lifting device for rewinding; and an operating circuit that drives one of the first and second lifting devices and drives the other when the rope is wound up or rewound to a predetermined position. Temporary operating equipment.