PERMANENT SCREW ATTACHMENT

摘要

The invention relates to a method and system for permanently attaching a take-up screw (3) for taking-up the axial clearance of the armature shaft of a windscreen wiper motor. The take-up screw (3) is screwed axially into a bore (1) in the motor base (SM) until it reaches a stop position in relation to the armature shaft (6) locked on the screw, At least one surface discontinuity (2) is provided in the bore (1) and/or the thread of the screw (3), allowing the screw (3) to be screwed into the bore until it reaches the stop position. The screw (3) is screwed into the bore until the stop position is reached and a screw- and/or motor base-deformation strain (D) is applied at the discontinuity (2) in order to deform the side surface of the screw (3) and/or motor base (SM) and permanently attach the screw (3) and/or motor base by means of wedging in the discontinuity. The invention is suitable for the wind-screen wiper motors of motor vehicles.

主权项

1. A method for permanently securing a screw for compensating for the axial play of the armature shaft of a windshield wiper motor, the compensating screw being screwed axially into a bore of the motor mounting base (SM) as far as an abutment position with respect to the armature shaft which is immobilized thereon, the method comprising:
creating, in the bore and/or the thread of the screw , at least one surface discontinuity allowing the screw to be screwed into the bore as far as the abutment position; screwing the screw into the bore as far as the abutment position; and applying, at said discontinuity, a force for deforming the screw and/or the motor mounting base so as to deform the lateral surface of the screw and/or of the motor mounting base and so as to permanently secure the screw and/or the motor mounting base by jamming in said discontinuity.