JPH082850A - Work method in elevator shaft - Google Patents

Abstract

PURPOSE:To provide a work method in a lift path of an elevator in which the cage is run for the work by a winch apparatus capable of being temporarily easily installed and coping with any lift processes of the elevator. CONSTITUTION:A winch apparatus 28 for driving the intermediate part of a winch rope 35 suspended in a lift path 1 is temporarily provided in a cage 10. One end of the winch rope 35 is held on the top part of the lift path 1 through a support beam 5 for a winch and inserted through a main cable inserting hole 4 to engage a winch apparatus 28. The cage 10 is run through the winch rope 35 by the movement of the winch apparatus 28 to carry out operations concerning apparatus for an elevator. Thus, the operations can be easily carried out irrespective of the length of the lift stroke so that the trouble for temporarily providing the winch apparatus can be reduced. The preparatory plan of work is facilitated to reduce cost and improve the safety of the operation.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an elevator hoistway construction method for performing work relating to elevator equipment in hoistways in new construction work, repair work, and the like.

[0002]

2. Description of the Related Art FIG. 12 and FIG.
FIG. 12 is a view showing a conventional elevator hoistway construction method disclosed in Japanese Patent Application Laid-Open No. -1112989, FIG. 12 is a vertical cross-sectional view of the elevator apparatus, and FIG. 13 is a right side view of a main part of FIG. In the figure, (1) is a hoistway, (2) is located above the hoistway (1), and the floor (3) is provided with a main rope insertion hole (4) and a hoisting machine support beam (5). The machine room, (6) is a hoist installed on the hoist support beam (5), and (7) is a control panel provided in the machine room (2).

(8) is a rail for a car standing upright in the hoistway (1), (9) is a rail for a counterweight standing upright in the hoistway (1), and (10) is a rail for a car (8 ), An upper beam (11) and a car door device (12) are provided.
(13) The counterweight is guided by the counterweight rail (9) to move up and down, and (14) is wound around the drive sheave of the hoist (6) and inserted into the main rope insertion hole (4). , Both ends are baskets (1
0) and the main rope connected to the counterweight (13), (15) is a construction operating device temporarily installed in the machine room (2), and (16) is a construction operation temporarily installed on the upper beam (11). It is a board.

(17) is a hoisting type upper winch provided under the floor of the machine room (2) suspended from a hoisting device (18) supported by a hoisting machine supporting beam (5), and (19) ) Is the lower winch of the winding barrel provided on the upper beam (11), (20) is the upper winch (17) at both ends,
Lifting rope wound around the lower winch (19), (21), (22)
Is the operating device for construction (15), operation panel for construction (16), upper winch
A cable connecting the (17) and the lower winch (19), and (23) is a hall provided on the hoistway (1).

The conventional elevator hoistway construction method is carried out as follows with the above-mentioned device configuration.
That is, when the construction worker rides on the car (10) and operates the construction control panel (16), the upper winch (17) and the lower winch (19) are urged via the construction operation device (15). The basket (10) moves up and down.

Thus, for example, in repair work,
Even when the hoisting machine (6) and control panel (7) are removed, the car
(10) can be moved up and down to perform work related to elevator equipment in the required hoistway (1). That is, the equipment of the hall (23) in the hoistway (1), and the car from the hall (23) side.
Car door device (12) of (10), operation panel in car (10) (not shown), position indicator of car (10) (not shown) .

[0007] In the repair work of the elevator system, the aging equipment such as the hoisting machine (6) is replaced and the control panel (7) which is computerized and has high performance is replaced. Also,
As for the structural equipment such as the hoisting machine supporting beam (5) in the machine room (2) and the car (10) itself, the existing equipment is often used as it is. In such construction, it is required to shorten the period during which the elevator cannot be used as much as possible. Therefore, without constructing a work scaffold in the hoistway (1), the construction worker rides on the car (10) and uses the upper winch (17) and the lower winch (19) to move the car (10).
The work inside the elevator hoistway is performed by moving up and down.

[0008]

In the conventional elevator hoistway construction method described above, the upper winch (1
7) and the lower winch (19) are hoisting type,
Since the length of (20) is restricted, a winch with a lifting head corresponding to the lifting stroke of the elevator is required. That is, when the lifting stroke is long, the upper winch (17) and the lower winch (1
9) will be temporarily installed. In addition, since the upper winch (17) and the lower winch (19) are temporarily installed, the number of temporary installations increases and the operation operation of the two winches becomes complicated, and the electric circuit for safety is complicated. There was a problem that Further, the upper winch (17) must be mounted near the main rope insertion hole (4), which makes mounting work difficult.

The present invention has been made to solve the above problems, and is an elevator hoistway that can be easily temporarily installed and that can be operated for car construction by a lifting device that can be used regardless of the elevator hoisting stroke. The purpose is to obtain an internal construction method.

[0010]

In an elevator hoistway construction method according to the present invention, a machine room is provided above the hoistway and provided with a main rope insertion hole and a hoisting machine support beam on the floor. The process of holding one end of the hoisting rope to the top of the hoistway via the hoisting machine support beam and hanging it down the hoistway through the main rope insertion hole, and the hoisting device for the car that is vertically movable in the hoistway. Is set up, the longitudinal middle part of the lifting rope is engaged with the car through the lifting device, and the process of urging the lifting device to raise and lower the car through the lifting rope is set. To be done.

In the elevator hoistway construction method according to the present invention, a machine room is provided above the hoistway and provided with a main rope insertion hole and a hoisting machine support beam on the floor. One end side of the heavy rope is held at the top of the hoistway through the hoisting machine support beams and hung down to the hoistway through the main rope insertion hole, and the same specifications for the car that can be raised and lowered in the hoistway Installing a lifting device consisting of multiple units,
The steps of engaging the longitudinal intermediate portions of the respective lifting ropes with the respective cars via the lifting device and the steps of urging the respective lifting devices to raise and lower the car via the lifting ropes are set. .

Further, in the elevator hoistway construction method according to the present invention, a step of mounting a support member on an upper end portion of a rail erected in the hoistway, and a step of mounting a lifting device on the support member, Engaging the longitudinal middle part of the lifting rope with a lifting device to hang it down the hoistway; connecting the lower end of the lifting rope to a car that is vertically movable in the hoistway; And a step of urging the heavy device to raise and lower the car through the lifting rope.

Further, in the elevator hoistway construction method according to the present invention, the step of mounting the hoisting device in the machine room provided above the hoistway, and the step of setting the longitudinal intermediate portion of the hoisting rope to the hoisting device. The steps of engaging and inserting into the opening of the machine room floor and hanging down to the hoistway; connecting the lower end side of the lifting rope to a car that is vertically movable in the hoistway; And a step of urging the car to move up and down via a lifting rope.

[0014]

In the elevator hoistway construction method constructed as described above, the operation of the hoisting device raises and lowers the car through the hoisting rope to perform work related to the elevator equipment in the hoistway.

In the elevator hoistway construction method configured as described above, the elevator device in the hoistway is operated by raising and lowering the car through the hoisting rope by the operation of the hoisting device having a plurality of units of the same specifications. Related work is performed.

In the method for constructing an elevator hoistway constructed as described above, the operation of the hoisting device arranged on the support at the upper end of the rail moves the car up and down through the hoisting rope to raise or lower the car. Work related to elevator equipment is performed.

In the elevator hoistway construction method configured as described above, the elevator device in the hoistway is lifted up and down by the operation of the hoisting device arranged in the machine room to raise and lower the car through the hoisting rope. Related work is performed.

[0018]

【Example】

Example 1. 1 to 3 are views showing an embodiment of the present invention, FIG. 1 is a vertical cross-sectional view of an elevator apparatus, FIG. 2 is an explanatory view of a main part of FIG. 1, and FIG. 3 is a lifting apparatus of FIG. FIG.
In the figure, (1) is a hoistway, (2) is located above the hoistway (1), and a main rope insertion hole (4) and a hoisting machine support beam (5) are provided on the floor (3).
Is a machine room provided with a hoist, (6) is a hoist installed on a hoisting machine support beam (5), and (7) is a control panel provided in the machine room (2).

(8) is a rail for a car that is erected in the hoistway (1), (9) is a rail for a counterweight that is erected in the hoistway (1), and (10) is a rail for a car (8 ), An upper beam (11) and a car door device (12) are provided.
(13) The counterweight is guided by the counterweight rail (9) to move up and down, and (14) is wound around the drive sheave of the hoist (6) and inserted into the main rope insertion hole (4). , Both ends are baskets (1
0) and main weight connected to counterweight (13), (15) basket
(10) A work operation device temporarily installed on the upper beam (11), and (16) a work control panel temporarily installed on the upper beam (11).

Reference numeral (24) is a support body which is installed between the hoisting machine support beams (5) and is attached by a clip (not shown) or the like, and a hanging hand (25) is provided in the middle, and (26) is Connecting hole provided in the hanging hand (25), (27) is a mounting bracket fastened to the underside of the upper beam (11) by a bolt, (28) is a mounting bracket (2) on the basket (10).
The V-groove (2) in which a longitudinal intermediate portion of a lifting rope, which will be described later, is engaged, as shown in FIG.
9), a rope gripping mechanism (3
0), guide roller (31), fixing pin (32) for fixing to the mounting bracket (27), lifting rope inlet (33) and lifting rope outlet
(34) is provided.

One end of (35) is a main rope insertion hole of the machine room (2) floor (3)
The hoisting rope of the hoisting device (28) is inserted into the hoisting device (28) by being inserted into the hoistway (25) and connected to the connecting hole (26) of the hanger (25) by a shackle (not shown). Heavy rope entrance (33)
Is inserted into the V-groove (29) and is pulled out from the lifting rope exit (34) and the upper beam (11) of the car (10) is inserted.
It is wound around a pulley (36) pivotally attached to and is suspended in the hoistway (1). (21) and (22) are cables for connecting the construction operating device (15), the construction control panel (16), and the lifting device (28), and (23) is the landing provided in the hoistway (1). is there.

In the lifting device (28) having the above structure, when the tension P acts on the lifting rope (35), the rope grasping mechanism (30) operates in the direction of arrow A shown in FIG. As a result, the pressing force F against the lifting rope (35) acts on each roller of the rope grasping mechanism (30).
Since each roller of the rope grasping mechanism (30) is provided so that ΣF> P, when the lifting device (28) is urged, the V groove wheel (29) and the lifting rope (35) are The lifting rope (35) is driven by the frictional force of and the car (10) moves up and down.

With such a device configuration, for example, in the repair work of an elevator, the car (10) is moved by the hoisting machine (6) through the main ropes (14) and the top floor of the hoistway (1).
Stop at (23). In this state, the mounting bracket (27) is fastened to the underside of the upper beam (11) of the car (10) with bolts, and the lifting device (28)
To the mounting bracket (27) using the fixing pin (32). In the machine room (2), the support beam (2) is attached to the hoisting machine support beam (5).
4) is erected by a clip, and the cable (22) is hoisted using a conventional moving cable hole (not shown).
(1) It hangs down and is connected to the operating device (15) for construction, and also connected to the operation panel (16) for construction and the lifting device (28).

Next, the construction operation panel (16) is operated to operate the lifting device (28), and one end of the lifting rope (35) is lifted to the lifting device (28).
The lifting rope (35) will be delivered from the lifting rope outlet (34) when it is inserted into the lifting rope inlet (33), and the end of this lifting rope (35) will be wound around the pulley (36). Hang from the outside of the basket (10) into the hoistway (1). Then, insert the other end of the lifting rope (35) into the main rope insertion hole (4) of the machine room (2) floor surface (3),
The support body (24) is connected to the connection hole (26) of the suspension (25) by a shackle.

Next, although not shown, the counterweight
Place an appropriate spacing piece on the shock absorber on the side of (13), operate the operation control panel (16) and operate the lifting device (28) to raise the car (10), and the balance weight ( 13) descends and hits the spacer above the shock absorber to stop. When the car (10) is further raised by the lifting device (28) in this state, the main rope (14) loosens, and the main rope (14) is disconnected from the car (10) and the counterweight (13). And remove the main rope (14).

As described above, the lifting device (28) is attached to the lower side of the upper beam (11) of the car (10), and the lifting rope (35) is installed in the machine room (2).
It is inserted into the main rope insertion hole (4) of the floor (3) and the support (24)
It is connected to the connection hole (26) of 5) by a shackle. Further, the lifting rope (35) is driven by engaging the lifting device (28) at the longitudinal middle portion. Then, in the above-mentioned situation, the work in the elevator hoistway is performed as described below. That is, when the construction worker rides on the car (10) and operates the construction control panel (16), the lifting device (28) is urged via the construction operation device (15), and the car (10) is urged. Moves up and down.

As a result, for example, in repair work,
Even when the hoisting machine (6) and control panel (7) are removed, the car
(10) can be moved up and down to perform work related to elevator equipment in the required hoistway (1). That is, the equipment of the hall (23) in the hoistway (1), and the car from the hall (23) side.
Car door device (12) of (10), operation panel in car (10) (not shown), position indicator of car (10) (not shown) .

In the above structure, the lifting rope (3
The length of 5) is not restricted by the lifting device (28), and it is possible to easily cope with a long elevator ascending and descending. Also, only one lifting device (28) is required,
The number of temporary construction of the lifting device (28) can be reduced, the driving operation can be simplified, and the electric circuit for safety can also be simplified. In addition, a lifting device with a small number of steps
(28) can be temporarily installed. Therefore, it is possible to facilitate the setup of the work in the elevator hoistway, reduce the cost, and improve the safety of the work in the elevator hoistway.

Example 2. FIG. 4 is an explanatory view showing another embodiment of the present invention. Equipments for construction in the elevator hoistway similar to those shown in FIGS. 1 to 3 are provided except those shown in FIG. The same reference numerals as those in FIGS. 1 to 3 denote the same components. (28) is a lifting device provided under the upper beam (11) of the car (10), and (35) is a lifting rope corresponding to each lifting device (28), which are arranged in parallel with each other. Although not shown in the figure, the main rope insertion hole (4) in the machine room (2) floor (3)
And is connected to the connection hole (26) of the support (24) and the handle (25) by a shackle.

Also in the embodiment of FIG. 4, the lifting rope (35)
The length of is not restricted by the lifting device (28),
Further, since the lifting device (28) is arranged below the upper beam (11) of the car (10), it can be easily temporarily installed with a small number of steps. Therefore, also in the embodiment of FIG. 4, the same operation and effect as those of the embodiment of FIGS.

Further, when the load due to the weight of the car (10) exceeds the capacity of one lifting device (28), a plurality of lifting devices (28) having the same capacity are used to ) Is operated for construction in the elevator hoistway. Therefore, a heavy lifting device
The cost can be saved without the need to prepare (28).

Example 3. FIG. 5 is an explanatory view showing another embodiment of the present invention. Devices other than those shown in FIG. 5 are the same as those used in FIGS. 1 to 3 for construction in the elevator hoistway. The same reference numerals as those in FIGS. 1 to 3 denote the same components. (28) is the upper beam (11) of the basket (10)
Lifting device provided on the lower side of the machine, (35) is a lifting rope of each lifting device (28), which are arranged in parallel with each other and are not shown in the drawing, but the machine room (2) floor (3) It is inserted into the main rope insertion hole (4) and is connected to the support member (24) and the connection hole (26) of the hanging hand (25) by a shackle.

(37) is a suspension vehicle pivotally attached to the lower side of the upper beam (11) of the car (10), and is disposed between the two lifting devices (28) and is connected to the main rope (14). And the car (10) is suspended by the hoisting machine (6) by 2: 1 roping.

Also in the embodiment of FIG. 5, the lifting rope (35)
The length of is not restricted by the lifting device (28),
Further, since the lifting device (28) is arranged below the upper beam (11) of the car (10), it can be easily temporarily installed with a small number of steps. Therefore, although detailed description is omitted, in the embodiment of FIG. 5, the same operation and effect as those of the embodiments of FIGS. 1 to 3 can be obtained.

Also, a basket (10) by 2: 1 roping
If the load due to the weight of the car (10) exceeds the capacity of one lifting device (28), the multiple lifting devices (28) with the same capacity are used. By the basket (1
0) is operated for construction in the elevator hoistway. Therefore, it is not necessary to prepare a heavy lifting device (28), and the cost can be saved.

Example 4. FIG. 6 is an explanatory view showing another embodiment of the present invention. Devices other than those shown in FIG. 6 are the same as those in FIGS. 1 to 3 for construction in the elevator hoistway. The same reference numerals as those in FIGS. 1 to 3 denote the same components. (38) is a rope stop beam arranged in parallel with the hoisting machine supporting beam (5), and (39) is an auxiliary supporting body configured in the same manner as the supporting body (24), one end of which is supporting for the hoisting machine. The other end of the beam (5) is placed on a rope (38).

Also in the embodiment of FIG. 6, the lifting rope (35)
The length of is not restricted by the lifting device (28),
Further, since the lifting device (28) is arranged below the upper beam (11) of the car (10), it can be easily temporarily installed with a small number of steps. Therefore, also in the embodiment of FIG. 6, the same actions and effects as those of the embodiments of FIGS. 1 to 3 can be obtained.

In addition, the weight of the basket (10) is one (2
When the capacity of 8) is exceeded, the car (10) is operated for construction in the elevator hoistway by using multiple lifting devices (28) of the same capacity. Therefore, a heavy lifting device
The cost can be saved without the need to prepare (28).

Further, in the embodiment of FIG. 6, the machine room (2) when the car (10) is suspended by 2: 1 roping
The hoisting rope (35) is connected to the supporting body (24) and the auxiliary supporting body (39) arranged right above the respective hoisting devices (28). Therefore, the lifting rope (35) and the lifting device (2
8) does not exert an unreasonable lateral load, thus improving safety.

Example 5. FIG. 7 is an explanatory view showing another embodiment of the present invention. Devices other than those shown in FIG. 7 are the same as those used in FIGS. 1 to 3 for construction in the elevator hoistway. The same reference numerals as those in FIGS. 1 to 3 denote the same components. (40) is a support placed below the floor (3) of the machine room (2), both ends of which are provided at corresponding positions of the hoisting machine support beam (5) and are anchored by anchor bolts (41) to the floor. (3) Fastened to the lower side. Reference numeral (25) is a suspender (25) provided in the middle of the support (40), and reference numeral (26) is a connecting hole provided in the suspender (25).

Also in the embodiment of FIG. 7, the lifting rope (35)
The length of is not restricted by the lifting device (28),
Further, since the lifting device (28) is arranged below the upper beam (11) of the car (10), it can be easily temporarily installed with a small number of steps. Therefore, also in the embodiment of FIG. 7, the same actions and effects as those of the embodiments of FIGS. 1 to 3 can be obtained.

The embodiment of FIG. 7 shows a supporting beam (5) for a hoisting machine.
It is possible to easily deal with the elevator repair work in which the above is removed, and it is possible to obtain the same operation as the embodiment of FIGS.

Example 6. FIG. 8 is an explanatory view showing another embodiment of the present invention. Devices other than those shown in FIG. 8 are the same as those used in FIGS. 1 to 3 for construction in the elevator hoistway. The same reference numerals as those in FIGS. 1 to 3 denote the same components. (42) is a support installed between the upper ends of the car rail (8) and the lifting devices (28) are mounted apart from each other, and (43) is provided on the upper beam (11) of the car (10). The connecting device is arranged at a position facing the lifting device (28) and the ends of the lifting rope (35) are connected.

Also in the embodiment of FIG. 8, the lifting rope (35)
The length of is not restricted by the lifting device (28),
In addition, the supports installed on the upper ends of the car rails (8).
Since the lifting device (28) is arranged on the (42), it can be easily temporarily installed with a small number of steps. Therefore, also in the embodiment of FIG. 8, the same actions and effects as those of the embodiments of FIGS. 1 to 3 can be obtained.

Further, the embodiment of FIG. 8 shows a supporting beam (5) for a hoisting machine.
Elevator renovation work to remove
It is possible to easily cope with the case where the floor strength of (2) is insufficient, and it is possible to obtain the same operation as that of the embodiment of FIGS.

Example 7. FIG. 9 is an explanatory diagram showing another embodiment of the present invention. Devices other than those shown in FIG. 9 are the same as those used in FIGS. 1 to 3 for construction in the elevator hoistway. The same reference numerals as those in FIGS. 1 to 3 denote the same components. (28) is a lifting device provided on the floor (3) surface of the machine room (2), (35) is a lifting rope inserted through the through hole of the floor (3), and is on the car (10). The beam (11) is connected to a connecting tool (43) provided at a position facing the lifting device (28).

Also in the embodiment of FIG. 9, the lifting rope (35)
The length of is not restricted by the lifting device (28),
Further, since the lifting device (28) is arranged on the floor (3) surface of the machine room (2), temporary installation can be easily performed with a small number of steps. Therefore, also in the embodiment of FIG. 9, the same actions and effects as those of the embodiments of FIGS. 1 to 3 can be obtained.

Further, in the embodiment of FIG. 9, when removing existing equipment and mounting new equipment in the car (10), the lifting device (28) installed on the car (10) interferes with the work. When
This inconvenience can be easily eliminated, and the same operation as that of the embodiment shown in FIGS. 1 to 3 can be obtained.

Example 8. FIG. 10 is an explanatory view showing another embodiment of the present invention. Devices other than those shown in FIG. 10 are the same as those shown in FIGS. 1 to 3 for construction in the elevator hoistway. The same reference numerals as those in FIGS. 1 to 3 denote the same components. (28) is a lifting device provided under the floor (3) of the machine room (2), (35) is a lifting rope of the lifting device (28), and the upper beam (11) of the car (10) ) Is connected to the connecting device (43) arranged at a position facing the lifting device (28).

Also in the embodiment of FIG. 10, the lifting rope (3
The length of 5) is not restricted by the lifting device (28), and the lifting device (28) is arranged only under the floor (3) of the machine room (2). Therefore, even in the embodiment of FIG.
~ The same action and effect as the embodiment of Fig. 3 are obtained.

In the embodiment of FIG. 10, the car (10) is used when removing existing equipment and installing new equipment in the car (10).
This problem can be easily resolved when the lifting device (28) installed above interferes with the work.
It is possible to obtain the same effect as that of the embodiment.

Example 9. FIG. 11 is an explanatory view showing another embodiment of the present invention. Devices other than those shown in FIG. 11 are the same as those used in FIGS. 1 to 3 for construction in the elevator hoistway. The same reference numerals as those in FIGS. 1 to 3 denote the same components. (1) is the hoistway, where the solid line shows the parts already constructed and the broken line shows the parts not yet constructed. (Four
4) is a hoisting device that is erected near the upper end of the constructed hoistway (1)
The support with (28) attached, (35) is the lifting rope of the lifting device (28), and is placed at a position facing the lifting device (28) of the upper beam (11) of the car (10). Connected to the connector (43).

Also in the embodiment of FIG. 11, the lifting rope (3
The length of 5) is not restricted by the lifting device (28), and the lifting device (28) is arranged on the support body (44) installed near the upper end of the constructed hoistway (1). Therefore, it can be easily installed temporarily with a small number of steps. Therefore, also in the embodiment of FIG. 11, the same operation and effect as those of the embodiments of FIGS. 1 to 3 can be obtained.

The embodiment of FIG. 11 shows a hoistway under construction.
It is possible to easily cope with the case where the elevator is installed in (1), and it is possible to obtain the same operation as the embodiment of FIGS. It should be noted that as the construction of the hoistway (1) progresses, as shown in FIG.
11, the support body (44), the lifting device (28), and the like are moved from the already-constructed location indicated by the solid line to the location indicated by the broken line in FIG.

[0055]

As described above, according to the present invention, the machine room, which is disposed above the hoistway and provided with the main rope insertion hole and the hoisting machine supporting beam on the floor, winds one end side of the lifting rope. The process of holding the hoistway at the top of the hoistway through the upper machine support beam and hanging it down the hoistway through the main rope insertion hole; the step of mounting the hoisting device on the car that is vertically movable in the hoistway; A step of engaging the longitudinal middle portion of the rope with the car via the lifting device and a step of urging the lifting device to move the car up and down via the lifting rope are set. Then, the operation of the hoisting device raises and lowers the car through the hoisting rope to perform work related to the elevator equipment in the hoistway.

As a result, the length of the hoisting rope is not restricted by the hoisting device, and the hoisting rope can be easily accommodated regardless of the length of the elevator stroke. Further, only one lifting device is required, and the number of temporary work can be reduced, and the driving operation can be simplified and the electric circuit for safety can also be simplified. Therefore, it is possible to facilitate the setup of the work inside the elevator hoistway, reduce the cost, and improve the safety of the work inside the elevator hoistway.

Further, as described above, the present invention is arranged above the hoistway and has a machine room in which a main rope insertion hole and a hoisting machine support beam are provided in the floor, and one end of a plurality of hoisting ropes. Each side is held at the top of the hoistway via the hoisting machine support beam and hung down to the hoistway through the main rope insertion hole, and a car that can be raised and lowered in the hoistway consists of multiple units with the same specifications. The steps of installing the lifting device, the steps of engaging the longitudinal intermediate portions of the lifting ropes with the respective cars via the lifting device, and the steps of biasing the respective lifting devices to the car via the lifting rope. And the process of raising and lowering. Then, the operation of the hoisting device composed of a plurality of units of the same specification elevates and lowers the car through the hoisting rope to perform work related to the elevator equipment in the hoistway.

As a result, the length of the hoisting rope is not restricted by the hoisting device, and it is possible to easily cope with the lifting stroke of the elevator regardless of its length. Therefore, it is possible to facilitate the setup of the work inside the elevator hoistway, reduce the cost, and improve the safety of the work inside the elevator hoistway. In addition, when the load due to the weight of the car exceeds the capacity of one lifting device, a plurality of lifting devices with the same specifications are used to operate the car for work in the elevator hoistway. Therefore, there is no need to prepare a large-capacity hoisting device, which has the effect of reducing costs.

In addition, as described above, the present invention, the step of mounting the support on the upper end of the rail erected in the hoistway, the step of mounting the lifting device on the support, and the lifting rope The process of engaging the longitudinal middle part with the lifting device to hang it down the hoistway, the process of connecting the lower end side of the lifting rope to the car that is vertically movable in the hoistway, and attaching the lifting device And a step of moving the car up and down via a lifting rope. Then, the operation of the lifting device arranged on the support at the upper end of the rail moves the car up and down via the lifting rope to perform work related to the elevator equipment in the hoistway.

As a result, the length of the hoisting rope is not restricted by the hoisting device, and the hoisting machine support beam can be easily removed regardless of the length of the elevator hoisting stroke. This is an elevator renovation work to be performed, and can easily cope with the case where the floor of the machine room is insufficient in strength. Therefore, it is possible to facilitate the setup of the work inside the elevator hoistway, reduce the cost, and improve the safety of the work inside the elevator hoistway.

As described above, according to the present invention, the step of mounting the lifting device in the machine room provided above the hoistway and the longitudinal middle part of the lifting rope are engaged with the lifting device. Inserting through the opening in the floor of the machine room to hang it down the hoistway, connecting the lower end of the lifting rope to a car that can be lifted up and down in the hoistway, and energizing the lifting device. The process of raising and lowering the car through the lifting rope is set. And
The operation of the lifting device arranged in the machine room raises and lowers the car through the lifting rope to perform work related to the elevator equipment in the hoistway.

As a result, the length of the hoisting rope is not restricted by the hoisting device, and the hoisting stroke of the elevator can be easily dealt with regardless of the length of the elevator ascending / descending. When removing and installing new equipment,
It is possible to solve the problem when the lifting device interferes with the work. Therefore, it is possible to facilitate the setup of the work inside the elevator hoistway, reduce the cost, and improve the safety of the work inside the elevator hoistway.

[Brief description of drawings]

FIG. 1 is a vertical cross-sectional view of an elevator device showing a first embodiment of the present invention.

FIG. 2 is an explanatory diagram of a main part of FIG.

3 is an explanatory view of the lifting device of FIG. 1. FIG.

FIG. 4 is an explanatory diagram showing a second embodiment of the present invention.

FIG. 5 is an explanatory diagram showing Embodiment 3 of the present invention.

FIG. 6 is an explanatory diagram showing Embodiment 4 of the present invention.

FIG. 7 is an explanatory diagram showing Embodiment 5 of the present invention.

FIG. 8 is an explanatory diagram showing Embodiment 6 of the present invention.

FIG. 9 is an explanatory diagram showing Embodiment 7 of the present invention.

FIG. 10 is an explanatory diagram showing Embodiment 8 of the present invention.

FIG. 11 is an explanatory diagram showing Embodiment 9 of the present invention.

FIG. 12 is a vertical cross-sectional view of an elevator device showing a conventional elevator hoistway construction method.

FIG. 13 is an enlarged view of the right side surface of the main part of FIG.

[Explanation of symbols]

1 hoistway, 2 machine room, 3 floor, 4 main rope insertion hole, 5
Hoisting machine support beams, 8 rails (car rails), 10
Basket, 28 lifting device, 35 lifting rope, 42 support.

Claims (4)

[Claims] 1. A machine room disposed above the hoistway and provided with a main rope insertion hole and a hoisting machine supporting beam on the floor, and one end side of a hoisting rope is provided through the hoisting machine supporting beam. A step of holding the hoistway at the top of the hoistway and hanging it down the hoistway through the main rope insertion hole; a step of mounting a hoisting device on a car that is vertically movable in the hoistway; and a longitudinal direction of the hoisting rope. An elevator of the hoistway, which comprises a step of engaging the intermediate portion with the car through the lifting device and a step of urging the lifting device to move the car up and down through the lifting rope. Elevator hoistway construction method to perform work related to equipment. 2. A machine room disposed above the hoistway and provided with a main rope insertion hole and a hoisting machine supporting beam on the floor, and one end side of each of a plurality of hoisting ropes is supported by the hoisting machine. A process of holding the hoistway at the top of the hoistway via a beam and hanging it down to the hoistway through the main rope insertion hole, and a lifting device composed of a plurality of the same specifications for a car that is vertically movable in the hoistway. The step of mounting, the step of engaging the longitudinal intermediate portion of each of the lifting ropes with the car via the lifting device, and the step of biasing each lifting device via the lifting rope. An elevator hoistway construction method for performing work relating to elevator equipment in the hoistway, which comprises a step of hoisting the car. 3. A step of mounting a support on an upper end portion of a rail erected in a hoistway, a step of mounting a lifting device on the support, and a longitudinal intermediate portion of a lifting rope for the lifting device. And hanging down to the hoistway, connecting the lower end side of the lifting rope to a car provided in the hoistway so as to be lifted and lowered, and urging the lifting device to An elevator hoistway construction method for performing work related to elevator equipment in the hoistway, which comprises a step of hoisting the car through a lifting rope. 4. A step of mounting a lifting device on a machine room provided above a hoistway, and a longitudinal intermediate portion of a lifting rope is engaged with the lifting device to open the opening of the machine room floor. Inserting and hanging down to the hoistway, connecting the lower end side of the lifting rope to a car provided in the hoistway so that it can be lifted up and down, and urging the lifting device to lift the hoist. An elevator hoistway construction method for performing work related to elevator equipment in the hoistway, which comprises a step of hoisting the car through a rope.