Title:
RENEWAL METHOD FOR UNDERGROUND EMBEDDED PIPE
Document Type and Number:
Japanese Patent JP2999393
Kind Code:
B2
Abstract:
PURPOSE: To eliminate a large sized boiler, a water feed pump and the like, save a facility cost, arrange a round pipe having high strength easily, and prevent reduction of flow-down capacity.
CONSTITUTION: In the case where many segments are connected to each other in a circumferential direction and a longitudinal direction, such a things is used as a segment 10 that flanges 12, 13, 14, 15 are arranged in outward-radial direction on four circumferences of a skin plate 11, a plurality of bolt holes 12a, 14a are arranged on one side of the opposing flange, nuts 13a, 15a are arranged opposing to bolt holes 12a, 14a on the other side, and working window holes 11a, 11b are opened on the rim part of the skin plate 11 of a side on which the bolt holes 12a, 14a are arranged. Rubber packings 16, 17 are interposed between two adjacent segments, a bolt 18 is penetrated and screwed down into the bolt holes 12a, 14a, and the nuts 13a, 15a from the inner side of the segment through the working window hole, and then the working window hole is sealed by synthetic resin.
Inventors:
Kaoru Abe
Application Number:
JP13862895A
Publication Date:
January 17, 2000
Filing Date:
May 12, 1995
Export Citation:
Assignee:
Susumu Sangyo Co., Ltd.
International Classes:
F16L1/00; F16L1/024; (IPC1-7): F16L1/00; F16L1/024
Domestic Patent References:
| JP61126223A | ||||
| JP63203985A | ||||
| JP4247111A |
Attorney, Agent or Firm:
Ryoji Yoshida
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