EP 0634234 A1 19950118 - Device for grooving tubes.
Title (en)
Device for grooving tubes.
Title (de)
Vorrichtung zum Nuten von Rohren.
Title (fr)
Dispositifs de rainurage de tubes.
Publication
Application
Priority
FR 9308985 A 19930716
Abstract (en)
The device (1) comprises a holding die (4) intended to hold, in position inside the said tube (2), a floating mandrel (5) equipped with a grooved mandrel (6), a grooving unit (7) comprising a rotating cage (8) enclosing balls (9), so as to form a grooved tube (2R), and a finishing die (10), and the device is characterised in that: a) the said cage (8) consists of a bearing part (11), the internal profile (26) of which, in axial cross-section, comprises a circular arc (13), and of a flange (12) for closing the said cage; b) lubrication means. <IMAGE>
Abstract (fr)
Le dispositif (1) comprend une filière de maintien (4) destinée à maintenir en position à l'intérieur dudit tube (2) un mandrin flottant (5) muni d'un mandrin rainuré (6), un bloc de rainurage (7) comprenant une cage rotative (8) ceinturant des billes (9) de manière à former un tube rainuré (2R), et une filière de finition (10), et est caractérisé en ce que, a) ladite cage (8) est constituée d'une partie d'appui (11), dont le profil intérieur (26), en section axiale, comprend un arc de cercle (13), et d'un flasque de fermeture (12) de ladite cage, b) des moyens de lubrification. <IMAGE>
IPC 1-7
IPC 8 full level
B21C 3/16 (2006.01); B21C 37/15 (2006.01); B21C 37/20 (2006.01); B21D 17/00 (2006.01); B21D 41/04 (2006.01)
CPC (source: EP KR US)
B21C 3/16 (2013.01 - EP KR US); B21C 37/207 (2013.01 - EP KR US)
Citation (search report)
- [DA] US 4373366 A 19830215 - TATSUMI ARITAKA [JP]
- [A] US 4876869 A 19891031 - SAEKI CHIKARA [JP], et al
- [A] DK 24349 C 19190407 - BRINKMAN LOUIS HERMAN [US]
- [A] US 4712407 A 19871215 - YOSHIKI NAOKAZU [JP], et al
- [DA] PATENT ABSTRACTS OF JAPAN vol. 5, no. 199 (M - 102) 1981
- [DA] PATENT ABSTRACTS OF JAPAN vol. 4, no. 150 (M - 037) 1980
Designated contracting state (EPC)
DE ES GB IT
DOCDB simple family (publication)
EP 0634234 A1 19950118; EP 0634234 B1 19970326; CN 1053401 C 20000614; CN 1100348 A 19950322; DE 69402260 D1 19970430; DE 69402260 T2 19970807; ES 2098889 T3 19970501; FI 113751 B 20040615; FI 943385 A0 19940715; FI 943385 A 19950117; FR 2707534 A1 19950120; FR 2707534 B1 19950915; JP H0751753 A 19950228; KR 100290054 B1 20010515; KR 960013505 A 19960522; MY 110648 A 19980930; US 5526663 A 19960618
DOCDB simple family (application)
EP 94420202 A 19940712; CN 94107873 A 19940715; DE 69402260 T 19940712; ES 94420202 T 19940712; FI 943385 A 19940715; FR 9308985 A 19930716; JP 16395694 A 19940715; KR 19940016585 A 19940711; MY PI19941742 A 19940704; US 27474994 A 19940714