Hydraulic elevator updating method

Abstract

The present invention provides a hydraulic elevator updating method. A scaffold (24) is equipped at an upmost ground height where the updating operation is performed. For causing a cage (2) to arrive at a preset storey below the upmost storey, an overwinding detection device (13) which is used as a safety device, a compulsory stopping device (14), a compulsory speed reduction device (15) and an upmost distance ensuring detection device (16) are moved from a preset upmost storey to an upmost layer (a certain fixed storey below the upmost story of the lifting passage) where the cage (2) serves in the updating operation. A control circuit of a hydraulic elevator control plate (10) is varied for invalidating the cage calling and waiting hall calling of the storey above the upmost storey where the cage (2) services in the updating operation. Furthermore, the components such as a windlass (31) and a no-machine-room elevator control plate (32) are transported as the components of a newly equipped cable type no-machine-room elevator.

Description

technical field [0001] The invention relates to a hydraulic elevator updating method, in particular to a hydraulic elevator updating method for updating a hydraulic elevator to a cable type elevator without a mechanical room. Background technique [0002] In a hydraulic elevator, a hydraulic cylinder approximately equal to the length of the lifting stroke is fixed to the lower part of the lifting path, and the car is directly raised and lowered by a plunger that expands and contracts up and down by hydraulic pressure. [0003] Conventionally, when upgrading a hydraulic elevator to a cable-type elevator without a machine room, it was necessary to stop the elevator. [0004] The reason for this is that the structure of a hydraulic elevator and a cable-type elevator without a machine room are completely different. Therefore, when updating, it is necessary to disassemble the installed hydraulic cylinder and plunger and move it out from the entrance and exit of the lobby on the l...

AI Technical Summary

Problems solved by technology

[0006] However, in the technology of the above-mentioned Patent Document 1, the purpose is to reduce the work labor and shorten the construction period, but as a result, the operation of the car must be suspended during the entire renewal period.

Therefore, there remains the problem that during the renovation period, elevators cannot be used on floors unrelated to the construction while the renovation construction is in progress.

[0007] Therefore, there are still some buildings where the unavailability of elevators has a great impact on residents or tenants, and it is not possible to decide to update them on the grounds that elevators cannot be used.

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