JP2007210708A - Lifting device and lifting method for elevator hoist machine - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a lifting device and a lifting method for an elevator hoist machine capable of smoothly lifting the hoist machine without interfering with an obstacle arranged in a shaft. <P>SOLUTION: According to the present invention, if the hoist machine is fixed/lifted to a beam member 5 through a fixing member 7 in the stand-up state as mentioned above, the hoist machine 6 can be smoothly lifted without interfering with the obstacle even if the obstacle such as a working scaffolding 4 exists in the shaft 1. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a lifting device and a lifting method for an elevator hoist.

As a conventional lifting device for an elevator hoisting machine, a hoisting machine is fixed on a machine base guided at both ends thereof by guide rails for guiding a car, and the hoisting machine is lifted by lifting the machine base. Has been proposed (see Patent Document 1).
JP 2000-169059 A

  However, according to the prior art described in Patent Document 1, when an obstacle such as a work scaffold is disposed in the hoistway, the obstacle interferes with the hoisting machine, and both are damaged. There was concern.

  The present invention has been made in view of this inconvenience, and an object of the present invention is to provide an elevator hoisting machine that can smoothly lift the hoisting machine without interfering with an obstacle arranged in the hoistway. It is in providing a lifting apparatus and a lifting method.

  In order to achieve the above-mentioned object, the present invention is configured to guide one of a pair of guide rails to each of a pair of guide rails that guide the raising and lowering of a lifting body that is standing in a hoistway and is a passenger car or a counterweight. In a lifting device for an elevator hoisting machine for lifting a hoisting machine, a beam member that is lifted and lowered with both ends thereof guided by the pair of guide rails, and the hoisting machine is in an upright state or a hoistway on the beam member The beam member is lifted by lifting a fixing member that is pivotably fixed so as to be tilted toward the center, and a lifting cable that is installed at the top of the hoistway and has one end fixed to the beam member. It is characterized by comprising a lifting machine.

  According to the present invention, as described above, if the hoisting machine is fixed to the beam member in a standing state and lifted, even if there is an obstacle such as a working scaffold in the hoistway, the obstacle will interfere with the obstacle. The hoist can be lifted smoothly without any problems.

  Further, if the hoisting machine is lifted to the installation position, the hoisting machine can be easily and accurately positioned at the installation position by tilting the hoisting machine.

  According to the lifting device and the lifting method of the elevator hoist according to the present invention, the hoist can be smoothly lifted and installed without interfering with an obstacle disposed in the hoistway.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings.

  Here, FIGS. 1 to 3 are hoistway longitudinal sectional views illustrating a lifting method of the hoisting machine using the elevator hoisting apparatus according to the present invention, and FIGS. 4 to 6 are elevators according to the present invention. It is a principal part enlarged view of the lifting apparatus of a winding machine.

  First, the structure of the elevator in which the lifting apparatus which is this invention is used is demonstrated using FIG.

  As shown in FIG. 1, a pair of guide rails 2 and 3 are provided in the hoistway 1 to guide the raising and lowering of a lifting body (not shown) that is a passenger car or a counterweight. An installation work scaffold 4 for installing these guide rails 2, 3 and the like is assembled from the bottom of the hoistway 1 toward the top.

  Next, the structure of the lifting apparatus which is this invention is demonstrated using FIGS.

  As shown in FIGS. 4 and 5, the lifting device of the present invention includes a beam member 5 that moves up and down with both ends thereof guided by the pair of counterweight guide rails 3, and a hoisting machine 6 that is mounted on the beam member 5. A fixed member 7 that is pivotably fixed so as to be in an upright state (see FIGS. 4 and 5) or in a tilted state toward the center of the hoistway 1 (see FIG. 6), and the beam member 5 installed on the top of the hoistway 1. And a lifting machine 8 that lifts the beam member 5 by lifting a lifting cable 8a having one end fixed thereto. Below the beam member 5, there is also provided a fixture 9 for detachably fixing the beam member 5 to the guide rail 3.

  Next, the lifting method of the hoisting machine using the lifting apparatus of the present invention will be described with reference to FIGS.

  First, as shown in FIG. 1, after fixing the fixture 9 to the guide rail 3 using the work scaffold 4 in the vicinity of the lowest floor landing 10a of the hoistway 1, the beam member 5 is mounted on the fixture 9. The hoisting machine 6 is erected on the beam member 5 through a fixing member 7.

  Thereafter, the lifting rope 8a of the lifting machine 8 is fixed to the beam member 5 and the fixing device 9 is released. Then, as shown in FIG. 2, the lifting rope 8a is lifted to the top of the hoistway 1 near the top floor landing 10b. The beam member 5 is lifted by a heavy machine 8.

  Then, the beam member 5 that has been lifted is fixed to the guide rail 3 using the fixture 9, and then the beam member 5 is fixed by the rod member 11 that is suspended downward from the top of the guide rail 3.

  Thereafter, as shown in FIGS. 3 and 6, the hoisting machine 6 is rotated and fixed so that the hoisting machine 6 is tilted toward the center of the hoistway 1 with the fixing member 7 as the rotation axis, and the lifting cable 8a is removed. If it removes, the installation work of the winding machine 6 will be completed.

  According to the present invention, as described above, if the hoisting machine 6 is fixed to the beam member 5 in the standing state and lifted, even if there is an obstacle such as the work scaffold 4 in the hoistway 1, this obstacle The hoisting machine 6 can be lifted smoothly without interfering with objects.

  According to the present embodiment, the beam member 5 is lifted by being guided by the counterweight guide rail 3, but if there is a space for raising and lowering the beam member 5 around the car guide rail 2, The beam member 5 may be lifted by being guided by the car guide rail 2.

It is a hoistway longitudinal cross-sectional view explaining the lifting method of the hoisting machine using the lifting apparatus of the elevator hoisting machine which is this invention. It is a hoistway longitudinal cross-sectional view explaining the lifting method of the hoisting machine using the lifting apparatus of the elevator hoisting machine which is this invention. It is a hoistway longitudinal cross-sectional view explaining the lifting method of the hoisting machine using the lifting apparatus of the elevator hoisting machine which is this invention. It is a principal part enlarged view of the lifting apparatus of the elevator hoisting machine which is this invention. It is a principal part enlarged view of the lifting apparatus of the elevator hoisting machine which is this invention. It is a principal part enlarged view of the lifting apparatus of the elevator hoisting machine which is this invention.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Hoistway 2 Car guide rail 3 Balance weight guide rail 4 Working scaffold 5 Beam member 6 Hoisting machine 7 Fixing member 8 Lifting machine 8a Lifting cable 9 Fixing tool 10a Bottom floor landing 10b Top floor landing 11 Rod member

Claims (3)

An elevator hoisting machine that lifts the hoisting machine by guiding it to either one of the pair of guide rails, each of which guides the raising and lowering of the lifting body that is standing in the hoistway and is a passenger car or a counterweight. In the lifting device,
A beam member that moves up and down with both ends thereof guided by the pair of guide rails, and a fixing member that fixes the hoisting machine to the beam member so that the hoisting machine is in an upright state or tilted toward the center of the hoistway. And an elevator hoisting machine that lifts the beam member by lifting a lifting cable that is installed at the top of the hoistway and has one end fixed to the beam member. Lifting equipment. In the lifting apparatus of the elevator hoist according to claim 1,
The lifting device for an elevator hoisting machine, wherein the fixing member fixes the hoisting machine in a standing state at a position where the fixing member does not interfere with a work scaffold installed on the center side of the hoistway. An elevator hoisting machine that lifts the hoisting machine by guiding it to either one of the pair of guide rails, each of which guides the raising and lowering of the lifting body that is standing in the hoistway and is a passenger car or a counterweight. In the lifting method,
The hoisting machine is fixed to a beam member that is lifted and lowered by being guided at both ends by the pair of guide rails, and the beam is directed from the lower part of the hoistway toward the hoistway top by a lifting machine installed at the top of the hoistway. A lifting method for an elevator hoisting machine, wherein the hoisting machine is lifted and the hoisting machine is fixed to the top of the hoistway after the hoisting machine is tilted.

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