JPH1129273A - Dismounting of main rope clearance adjusting stand - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a main rope clearance adjusting stand dismounting method capable of safely and smoothly performing an adjusting stand dismounting work. SOLUTION: In an adjusting stand dismounting method, an air bag is provided between an adjusting stand connected through bolts located at the lower part of a counterweight 7 and a buffer 9 installed on the inside bottom of a pit, the air bag 13 is inflated so as to put the adjusting stand 10 on the buffer 9 through the air bag 13 and, under that state, the bolts 11 are removed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for removing an adjustment stand for a main rope clearance in an elevator.

[0002]

2. Description of the Related Art Conventionally, a main rope clearance adjusting base has been fastened to the lower surface of a counterweight with four bolts. When removing the adjustment table from the counterweight, the adjustment table was held down with one hand, the spanner was held with the other hand, and the four bolts were removed with the spanner.

[0003]

In the above prior art,
Because the adjustment base is heavy, it cannot be held with one hand.If you try to turn the bolt in the direction to loosen the bolt with a spanner, the adjustment base will rotate, and the bolt cannot be removed smoothly. There is a problem that the working time becomes longer and there is a danger that the adjusting table may be dropped immediately after removing the bolt.

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems, and it is possible to safely and securely remove the work.
An object of the present invention is to provide a method for removing a main rope clearance adjusting base which can be smoothly performed.

[0005]

SUMMARY OF THE INVENTION The object of the present invention is to lower an elevator counterweight to a lowest position, and then connect an adjusting table, which is fastened by bolts to a lower portion of the counterweight, with a buffer provided at the bottom of the pit. This is achieved by interposing an airbag therebetween, and then removing the bolt from the adjustment table with the airbag fully inflated.

According to the above method, even if the adjusting table is heavy, the adjusting table is placed on the buffer via the air bag, so that the bolt is removed only by lightly supporting the adjusting table with one hand. Can be performed. Even if all four bolts are removed, the adjustment table is placed on the buffer via the airbag, and is safe without falling to the bottom of the pit.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to the drawings.

In FIG. 1, a rope type elevator 1
The hoistway 2, a machine room 3 formed above the hoistway 2, a hoisting machine 4 installed in the machine room 3, a main rope 5 wound up by the hoisting machine 4, Main rope 5
A car 6 attached to one end of the vehicle, a counterweight 7 attached to the other end of the rope 5, a control panel 8 provided in the machine room 3 and for controlling the hoist 4 and the like. A buffer 9 provided at the bottom 2a in the pit of the hoistway 2 to prevent collision of the counterweight 7.
And

As shown in FIGS. 2 and 3, an adjustment table 10 for adjusting the clearance is provided on the lower surface of the counterweight 7.
Are detachably fastened with four bolts 11. A buffer 12 for the car 6 for preventing a collision of the car 6 is provided at the bottom 2 a in the pit of the hoistway 2.

After the counterweight 7 is lowered to the lowest position, the airbag 1 having the shape shown in FIG.
3 is installed between the adjustment table 10 and the buffer 9 as shown in FIG. The air bag 13 is an air pump 14
Inflate by Some of the airbags 13
An air vent (shown) is formed. Usually, a plug is provided in the air vent portion, and when the airbag 13 is deflated, the plug is removed.

In the above configuration, the operation of removing the adjusting table 10 for adjusting the clearance of the main rope 6 from the counterweight 7 is performed as follows.

(1) First, the counter weight 7 of the elevator 1 is lowered to the lowest position.

(2) Next, an air bag 13 is installed between the adjustment table 10 and the buffer 9.

(3) After that, the air bag 13 is inflated by the air pump 14 so that the adjusting table 1 is inflated as shown in FIG.
0 is placed and fixed on the buffer 9.

(4) Thereafter, as shown in FIG. 5, the maintenance person A holds the spanner 15 in one hand and removes the bolt 11.

(5) The bolt 11 is removed, and the adjusting table 10 placed on the airbag 13 is held in both hands and cleared in a predetermined place.

According to the above methods (1) to (5), even if all the bolts 11 are removed, the counterweight 7
The adjustment table 10 is sandwiched between the airbag 13 and the airbag 13, and the adjustment table 10 is maintained on the buffer 9 without falling to the pit bottom 2a. It is. Moreover, when removing the bolt 11, it is only necessary to lightly support the adjustment table 10 with one hand, and the adjustment table 10 does not move significantly, so that the work of removing the bolt 11 by the spanner 15 can be performed without difficulty.

[0018]

As described above, according to the present invention, a method for removing the adjustment table for the main rope clearance, which can safely and easily remove the adjustment table, is obtained.

[Brief description of the drawings]

FIG. 1 is an overall schematic explanatory view of an elevator showing an embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a main part showing one embodiment of the present invention.

FIG. 3 is a sectional view taken along line III-III of FIG. 2;

FIG. 4 is a perspective view of a main part showing one embodiment of the present invention.

FIG. 5 is an explanatory view showing a state in which the adjustment table is removed according to the embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Elevator 2 Hoistway 2a Pit bottom 3 Machine room 4 Hoisting machine 5 Main rope 6 Riding car 7 Counter weight 8 Control panel 9 Buffer 10 Adjustment stand 11 Bolt 12 Buffer 13 Air bag 14 Air pump 15 Spanner A Maintenance staff

Claims (1)

[Claims] After lowering a counter weight of an elevator to a lowest position, an air bag is interposed between an adjustment table fastened by bolts below the counter weight and a buffer provided at the bottom of the pit, Thereafter, the bolt is removed from the adjustment base with the airbag fully inflated, and then the adjustment base for the main rope clearance is removed.