RUBBER EXPANSION TUBE AND ITS MANUFACTURING METHOD

PROBLEM TO BE SOLVED: To provide a rubber expansion tube, which can be used for a geological survey, and has a large expansion capacity in the radial direction and a large scratch resistance. SOLUTION: The rubber expansion tube 16 expands in the radial direction by the pressure of the fluid introduc...

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Bibliographische Detailangaben
1. Verfasser:	ITO TAKEMI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING BLASTING EMBANKMENTS ENGINEERING ELEMENTS AND UNITS EXCAVATIONS FIXED CONSTRUCTIONS FOUNDATIONS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING HYDRAULIC ENGINEERING INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS JOINTS OR FITTINGS FOR PIPES LAYERED PRODUCTS LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT ORNON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM LIGHTING MEANS FOR THERMAL INSULATION IN GENERAL MECHANICAL ENGINEERING PERFORMING OPERATIONS PIPES PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCESIN A PLASTIC STATE SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR SHAPING OR JOINING OF PLASTICS SOIL SHIFTING SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING THERMAL INSULATION IN GENERAL TRANSPORTING UNDERGROUND OR UNDERWATER STRUCTURES WEAPONS WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a rubber expansion tube, which can be used for a geological survey, and has a large expansion capacity in the radial direction and a large scratch resistance. SOLUTION: The rubber expansion tube 16 expands in the radial direction by the pressure of the fluid introduced therein. An inner reinforcing layer 34 and an outer reinforcing layer 36 are provided inside the region between an inner rubber layer 30 and an outer rubber layer 32. The outer reinforcing layer 36 is a longitudinal reinforcing string layer having reinforcing strings 38 which elongate substantially in parallel with the tube axis. The inner reinforcing layer 34 is a layer having reinforcing strings 40 which cross the longitudinal reinforcing strings of the outer reinforcing layer 36 making an acute angle of 10°. These inner reinforcing layer 34 and outer reinforcing layer 36 form a network structure. COPYRIGHT: (C)2004,JPO