Title:
STEEL TOWER FOR POWER TRANSMISSION WITH SAFETY FACILITY
Document Type and Number:
Japanese Patent JP3479858
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To let a hot-line job, etc., be done safely especially in a steel tower with a narrow line interval.
SOLUTION: Two ladders 33 and 43 for climbing the tower are parallelly installed right and left along a face of a tower body of a steel tower for power transmission. A handrail of one of these ladders 33, 43 is rotatably installed on the cable side through a hinge and that of the other one is installed through a locking device. When a worker performs a hot-line job, he goes up one ladder 33, unlocking the locking device 38 of the other ladder 43 and opening it toward the hot-line side. By this method, a wall of a protection fence 43 is formed on the hot-line side of the steel tower for transmission 22 and it separates a job area from the hot-line side. Therefore, the safety of the worker is secured.
Inventors:
Kunikazu Izumi
Takeshi Takahashi
Kazuo Yokoyama
Toshiaki Kumeda
Takeshi Takahashi
Kazuo Yokoyama
Toshiaki Kumeda
Application Number:
JP21968795A
Publication Date:
December 15, 2003
Filing Date:
August 04, 1995
Export Citation:
Assignee:
CENTRAL RESEARCH INSTITUTE OF ELECTRIC POWER INDUSTRY
Fujikura Ltd.
Fujikura Ltd.
International Classes:
H02G1/02; H02G7/00; (IPC1-7): H02G1/02; H02G7/00
Domestic Patent References:
| JP4834095U | ||||
| JP6397195U | ||||
| JP5123396U | ||||
| JP62199500U | ||||
| JP433475B1 |
Attorney, Agent or Firm:
Yukihiko Kagawa
Previous Patent: IMAGE FORMING DEVICE
Next Patent: STEEL TOWER FOR POWER TRANSMISSION WITH SAFETY FACILITY
Next Patent: STEEL TOWER FOR POWER TRANSMISSION WITH SAFETY FACILITY