COMPOSITE HOSE MANUFACTURING DEVICE AND COMPOSITE HOSE MANUFACTURED THEREBY

WIPO Patent Application WO/2018/230948

A1

Disclosed are a composite hose manufacturing device and a composite hose manufactured thereby. A composite hose manufacturing device according to the present invention manufactures a composite hose by enlarging the diameter of a cover to expand the cover and then winding components of the composite hose around the outer peripheral surface of the cover. After that, when the composite hose has been manufactured, the device reduces the diameter of the cover on which the composite hose has been wound, thereby contracting the cover. Then, a gap is generated between the outer peripheral surface of the cover and the inner peripheral surface of the composite hose. Thus, the composite hose can be easily separated from the cover. Therefore, the device has an effect of conveniently manufacturing a composite hose. Further, the composite hose manufactured by the composite hose manufacturing device according to the present invention is frictionlessly separated from the cover. Then, the pitch of an inner wire constituting the inner peripheral side of the composite hose is uniform and the inner peripheral side of a coating layer is not damaged. Thus, the composite hose has improved reliability.

KIM KYUNG IL (KR)
KIM HEE JIN (KR)
HWANG YOUNG IL (KR)

PCT/KR2018/006668

December 20, 2018

June 12, 2018

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SANGBONG CORP CO LTD (KR)

B29C53/82; B29C63/02; F16L11/08

KR20110123647A	2011-11-15
KR20160062005A	2016-06-01
KR20150136353A	2015-12-07
KR20120006333A	2012-01-18
JP5074303B2	2012-11-14

KIM, Sung Ho et al. (KR)

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