Title:
CONNECTION STRUCTURE FOR UNDERGROUND CABLE LAYING PIPE UTILITY CONDUIT
Document Type and Number:
Japanese Patent JP3035502
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To provide a connection structure which is easily provided, can suppress the lack of water salability due to malfunction of connection, and is easily recovered even at the emergency with the lack of water salability.
SOLUTION: A pipe utility conduit has one or plural bolt through-holes 2 at its center and plural cable through-holes around them, and a cylindrical collar 6 at its outer periphery of one end, and a male part 1B to be fitted into a fitting part 6B of the collar of another end. A first packing 8 which has substantially a section of right-angle triangle and a tapered surface opposed to an opening of the fitted part is arranged on a base of the fitting part of the cylindrical collar. A second packing 9 with has parallel arranged projections directed downwardly and obliquely from a planar portion to the base is arranged on a leading end of the fitting part. The each pipe utility conduit is connected to each other, through the male part fitted into the fitting part, the first and second packing. They are integrally connected to each other by fastening connecting rods 10 inserted into bolt through-holes 8 and connectable by screw- connection.
Inventors:
Kei Sato
Application Number:
JP31124396A
Publication Date:
April 24, 2000
Filing Date:
November 08, 1996
Export Citation:
Assignee:
Maeda Pipe Manufacturing Co., Ltd.
International Classes:
F16L1/00; F16L39/00; F16L49/00; (IPC1-7): F16L39/00; F16L1/00; F16L49/00
Domestic Patent References:
| JP6109174A | ||||
| JP747669Y2 | ||||
| JP453221Y1 |
Attorney, Agent or Firm:
Takeshi Komeya