EP 0070977 B1 19860326 - APPARATUS AND METHOD FOR FORMING AN EXTERNAL GUARD MEMBER ON A HOSE
Title (en)
APPARATUS AND METHOD FOR FORMING AN EXTERNAL GUARD MEMBER ON A HOSE
Publication
Application
Priority
US 8101025 W 19810730
Abstract (en)
[origin: EP0070977A1] This invention relates to an apparatus (10) and a method for forming, in situ, an external guard member (12), preferably of a spring steel wire material, on a hose (14). Spring steel wire is highly desirable as a material for guard members. Heretofore it has been necessary to preform the spring steel wire on a coiling machine and install precut lengths of the coil onto partially assembled hoses. The present invention overcomes the above problems of construction and assembly by providing an apparatus (10) and a method for forming the preferred spring steel wire guard member (12) in situ on a hose (14) having fittings preassembled on both ends. The apparatus (10) includes a forming head (20) having separable first and second portions (46, 48). A plurality of radially spaced die members (60) are provided on the first and second portions (46, 48) to fully form two complete coils of a guard member (12). The apparatus (10) and method of the present invention is particularly useful for forming spring steel wire guard members on high pressure hydraulic hoses subjected to severe service applications.
IPC 1-7
IPC 8 full level
B21F 17/00 (2006.01)
CPC (source: EP)
B21F 17/00 (2013.01)
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 0070977 A1 19830209; EP 0070977 B1 19860326; CA 1184752 A 19850402; DE 3270066 D1 19860430; JP H0431811 B2 19920527; JP S58501215 A 19830728; WO 8300455 A1 19830217
DOCDB simple family (application)
EP 82103904 A 19820505; CA 403381 A 19820520; DE 3270066 T 19820505; JP 50278081 A 19810730; US 8101025 W 19810730