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Machine translation
1. (WO1979001016) CORRUGATED HOSE
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/1979/001016    International Application No.:    PCT/JP1979/000102
Publication Date: 29.11.1979 International Filing Date: 23.04.1979
IPC:
B23Q 11/08 (2006.01), F16L 11/115 (2006.01), F16L 11/16 (2006.01)
Applicants:
Inventors:
Priority Data:
78/95414 10.07.1978 JP
Title (EN) CORRUGATED HOSE
(FR) TUYAU ONDULE
Abstract: front page image
(EN)In order to permit a corrugated hose to maintain its length constant in any one of its expanded and collapsed states a synthetic resin wall (1) has modulus of flexural rigidity in the range of from 2,500 kg/cm2 to 14,000 kg/cm2. Further, a circumferential bent portion across a crest (3) is arranged such that one circumferential end of the bent portion is located at the side of a valley (4) and another circumferential end is located at the side of the crest (3). Upon expanding or collapsing the hose, the oblique wall portion merging with the higher end of the bent portion is inverted to allow the hose to maintain its length in its state.
(FR)Un tuyau ondule peut garder sa longueur constante quel que soit son etat allonge ou replie. A cet effet, une paroi en resine synthetique (1) possede un module de flexion de l"ordre de 2.500 kg/cm2 a 14.000 kg/cm2. En outre, une partie circonferentielle pliee sur une crete (3) disposee de sorte qu"une extremite circonferentielle de la partie pliee soit situee au flanc d"une vallee (4) et une autre extremite circonferentielle est situee au flanc de la crete (3). Au cours de l"allongement ou du repliement du tuyau, la portion de paroi oblique fusionnant avec l"extremite superieure de la partie pliee est inversee pour permettre au tuyau de maintenir sa longueur dans le meme etat.
Designated States:
Publication Language: Japanese (JA)
Filing Language: Japanese (JA)