Title:
INSULATION CYLINDER OF LIGHTING INSULATOR AND MANUFACTURE THEREOF
Document Type and Number:
Japanese Patent JP3408893
Kind Code:
B2
Abstract:
PURPOSE: To prevent bursting of the whole body of an insulation cylinder, and increase residual strength after pressure discharge by setting the difference in strength of a pressure discharge part from other parts large, and quickly discharging inner pressure from the pressure discharge part when the inner pressure rises.
CONSTITUTION: A fiber bundle 15 in which resin is impregnated is wound at a specified winding angle A1 to form an inner cylinder part 12. On an outer circumference of the inner cylinder part 12, the resin-impregnated fiber bundle 15 is wound at a winding angle A2 which is different from that in the inner cylinder part 12 to form an outer cylinder part 13. Pressure discharge holes 16 are formed in the cylinder part 12, 13 in which the winding angle A1, A2 of the fiber bundle 15 is the larger of the inner cylinder part 12 and the outer cylinder part 13.
Inventors:
Tomoyasu Murase
Application Number:
JP14210295A
Publication Date:
May 19, 2003
Filing Date:
June 08, 1995
Export Citation:
Assignee:
Nippon Insulator Co., Ltd.
International Classes:
H01B17/00; H01B17/42; H01B19/00; (IPC1-7): H01B17/42; H01B17/00; H01B19/00
Domestic Patent References:
| JP6345805A | ||||
| JP1137603A | ||||
| JP6139858A | ||||
| JP62519U |
Attorney, Agent or Firm:
Hironobu Onda
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