Method for producing a vehicle seat fitting

摘要

In a method for producing a vehicle seat fitting, in which a plain bearing bush (28) is pressed in the axial direction into a receptacle of a first fitting part (11), wherein the pressed-in plain bearing bush (28) has a radially protruding securing region (28b), the securing region (28b) is formed before or after the pressing-in operation by material of the plain bearing bush (28) being displaced uncut, and the wall thickness (b) of the plain bearing bush (28) being less than 1.5 mm.

主权项

1. A method for producing a vehicle seat fitting wherein a plain bearing bush is pressed in an axial direction into a receiving member of a first fitting member wherein the pressed-in plain bearing bush has a radially protruding securing region wherein the securing region is formed before or after the pressing-in operation by material of the plain bearing bush being displaced in a non-cutting manner, and a wall thickness of the plain bearing bush is less than 1.5 mm,
wherein a construction of the securing region and any material displacement when the plain bearing bush is pressed in is carried out in a non-cutting manner by means of obtuse compression of the material of the plain bearing bush, wherein the material of the securing region is shaped by means of a stamp until it protrudes radially in manner of a collar, wherein shaping of the material of the securing region is carried out by a retention member supporting the plain bearing bush and a mandrel continuing to move, wherein the mandrel has a shaping contour which brings about the obtuse compression of the securing region, wherein the plain bearing bush is pressed into the first fitting member in a rotationally secure manner, wherein the plain bearing bush has a steel or bronze rear, which carries a sliding layer at a radially inner side, and wherein the sliding layer comprises polytetrafluoroethylene (PTFE) sintered in tin and/or lead and/or bronze.