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1. (WO2017016773) CONNECTING PIPE, STEERING OR TRACK ROD HAVING A CONNECTING PIPE OF SAID TYPE, AND METHOD FOR PRODUCING A CONNECTING PIPE OF SAID TYPE

Pub. No.:    WO/2017/016773    International Application No.:    PCT/EP2016/064900
Publication Date: Fri Feb 03 00:59:59 CET 2017 International Filing Date: Wed Jun 29 01:59:59 CEST 2016
IPC: B21D 41/02
B62D 7/20
B60G 7/00
Applicants: ZF FRIEDRICHSHAFEN AG
Inventors: REDDEHASE, Günter
EISMANN, Jens
Title: CONNECTING PIPE, STEERING OR TRACK ROD HAVING A CONNECTING PIPE OF SAID TYPE, AND METHOD FOR PRODUCING A CONNECTING PIPE OF SAID TYPE
Abstract:
The invention relates to a connecting pipe (11, 31, 41) for the connection of two joint attachments (12, 34, 35) of a steering rod (10, 30) or of a track rod. According to the invention, the connecting pipe (11, 31, 41) is reinforced in regions by at least one pipe section (13, 39, 40) which is connected in non-positively locking fashion to the connecting pipe (11, 31, 41), wherein the pipe section (13, 39, 40) bears by way of its outer wall (14) or by way of its inner wall in a fully areal manner, so as to form a press-fit connection, against a wall (24) of the connecting pipe (11, 31, 41). The invention also relates to a steering rod (10, 30) or track rod having a connecting pipe (11, 31, 41), wherein the end sections (19, 32, 33) of the connecting pipe (11, 31) each receive parts of joint attachments (12, 34, 35). Furthermore, a method for producing a connecting pipe (11, 31, 41) or a steering rod (10, 30) or track rod is proposed, wherein firstly, a pipe semifinished part of the pipe section (13, 39, 40) is positioned within a pipe semifinished part of the connecting pipe (11, 31, 41), and subsequently, both pipe semifinished parts are, within a connecting section (16, 42), expanded with an oversize by way of a drift (44) which moves in the common axial direction of the two pipe semifinished parts.