JP2005112587A - Rope reeving method for elevator - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a rope reeving method for an elevator for reeving a rope easily without requiring a large-sized device and a temporarily provided member. <P>SOLUTION: Only a work scaffold 6a in the vicinity of the uppermost story 5b of a work scaffold 6 is dismantled, a car frame 14 and a car lower pulley 15 are assembled on a work scaffold 6b just below the dismantled work scaffold 6a, and then the rope is reeved around the car lower pulley 15 to attach a car side rope end part 7b to a top part beam 8 for reeving the rope. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

  The present invention relates to an elevator rope hanging method.

Conventionally, both ends are attached to the vicinity of the elevator top, and a turning pulley arranged at the top of the elevator hoistway, a traction machine arranged at the bottom of the hoistway, and a counterweight and a lower part of the car frame. As a method of hanging the rope in the elevator that is hung around the lower pulley, only the lower pulley is temporarily fixed near the lowest floor in the state where the work scaffold is assembled over the entire stroke of the hoistway. A method is known in which a rope is hung without dismantling the work scaffold by disposing it near the top floor (see Patent Document 1).
JP 2001-122556 A (paragraph numbers 0012 to 0013, FIG. 1)

  In the conventional rope hanging method as described above, the cage lower pulley temporarily fixed near the lowest floor is a counterweight placed near the uppermost floor that is transmitted via the ropes hung around the turning pulley and the traction machine, respectively. The temporary material which has the intensity | strength which can hold | maintain this gravity was required.

  In addition, a lifting device was required to place the counterweight near the top floor.

  The present invention has been made to solve the above inconveniences, and an object of the present invention is to provide an elevator rope hanging method that can be easily roped without requiring a large-scale device or temporary material. It is in.

  In order to achieve the above object, the present invention according to claim 1 attaches both end portions thereof in the vicinity of the elevator top and a turning pulley having an intermediate portion disposed at the top of the elevator hoistway, and a bottom portion of the hoistway. In the elevator rope hanging method that is hung around the arranged traction machine, and the counterweight and the lower pulley of the car provided at the bottom of the car frame, the work scaffold is assembled throughout the hoistway and used. After installing the equipment in the hoistway in place, place the counterweight on the bottom of the hoistway and remove the rope hook on the part excluding the pulley under the car, including the rope hook on the counterweight pulley. After this, only the top floor of the work platform is dismantled, and the car frame and the car lower platform are placed on the work platform just below the dismantled work platform. And performing rope hanging to the car under pulley with assembling and re.

  According to the present invention, since the rope hanging work is performed using the work scaffold assembled throughout the hoistway process, the rope hanging work can be smoothly carried out without requiring a temporary material.

  Further, since the counterweight is roped in a state where it is placed on the bottom of the hoistway, a lifting device can be dispensed with.

  Since the present invention is configured as described above, the rope can be easily hung without requiring a large-scale device or temporary material.

  Hereinafter, an embodiment of an elevator rope hanging method according to the present invention will be described with reference to the drawings.

  FIG. 1 is a vertical cross-sectional view of a hoistway showing a rope hanging method of the present invention, and FIG. 2 is a vertical cross-sectional view of a hoistway showing a rope hanging method of the present invention.

In this embodiment, as shown in FIG.
First, the work scaffold 6 is assembled over the entire process of the hoistway 1, and the equipment in the hoistway 1, for example, the guide rail 2 and the top beam 8 are attached to predetermined positions using the work scaffold 6.

  Thereafter, the counterweight-side rope end 7a of the rope 7 is attached to the top beam 8, and the counterweight pulley 9 and the turning pulley 11a, the traction machine pulley 10 and the turning pulley 11b mounted on the bottom 1a of the hoistway 1 are attached. After hanging the rope 7, the car side rope end 7b is temporarily fixed to the work scaffold 6b.

  Thereafter, as shown in FIG. 1, only the work scaffold 6a in the vicinity of the uppermost floor 5b of the work scaffold 6 is disassembled, and the emergency stop device 14a is operated on the work scaffold 6b immediately below the disassembled work scaffold 6a. Then, the car frame 14 is temporarily fixed to the guide rail 2 and the car lower pulley 15 is assembled to the car frame 14, and then the rope 7 is hung around the car lower pulley 15.

  Thereafter, the car rope end 7b is attached to the top beam 8 from the car frame 14 to complete the rope hanging work.

It is a hoistway longitudinal cross-sectional view which shows the rope hanging method of this invention. It is a hoistway longitudinal cross-sectional view which shows the rope hanging method of this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hoistway 1a Hoistway bottom part 2 Guide rail 5b Top floor 6 Working scaffold 6a Top-floor working scaffold 6b Working scaffold right under the top-floor working scaffold 7 Rope 7a Balance weight side rope end 7b Car side rope end 8 Top Beam 9 Balance weight pulley 10 Traction machine pulley 11a, 11b Turning rope 14 Car frame 14a Emergency stop device 15 Car lower pulley

Claims (1)

A turning pulley with both ends attached near the elevator top and an intermediate part arranged at the top of the elevator hoistway, a traction machine arranged at the bottom of the hoistway, and a counterweight pulley and a car lower pulley provided below the car frame In the elevator rope hanging method,
After assembling the work scaffold over the entire process of the hoistway and attaching the equipment in the hoistway at a predetermined position using the work scaffold, the balance weight is placed on the bottom of the hoistway and connected to the balance weight pulley. After carrying out the rope hooking of the part excluding the pulley under the car including the rope hook, only the top floor part of the work scaffold is dismantled, and the car frame and the above on the work scaffold directly under the dismantled work scaffold An elevator rope hanging method comprising assembling a car lower pulley and performing rope hanging on the car lower pulley.

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