Wobble joint fitting for an adjustment device of a motor vehicle seat, in particular for a backrest joint fitting

A wobble joint fitting for an adjustment device of a motor vehicle seat comprising:

• a first fitting part comprising an internal ring gear;
• a toothed eccentric gear engaging the internal ring gear and comprising an eccentric hole and an annular collar having a cylindrical inner or outer surface;
• an eccentric comprising a rotatable drive part, a control part and wedge segments, configured and adapted to cause the toothed eccentric gear to engage the internal ring gear of the first fitting part, the eccentric configured and adapted to maintain the wedge segments in engagement with the collar, the control part comprising control surfaces coming to abut against the wedge segments;
• a second fitting part operatively connected to the toothed eccentric gear and adjustable with respect to the first fitting part, wherein the cylindrical inner or outer surface has a circumference and the cylindrical outer surface comprises latching recesses distributed over the circumference of the surface, a latching part is provided having at least one latching tooth, the latching tooth in a non-actuation position of the latching part is out of engagement with a latching recess and is biased in an actuation position of the latching part into engagement with a latching recess, the latching part further comprises an actuating flank, and the control part comprises an actuating portion coming to abut against the actuating flank and, during a rotary movement of the control part, presses the latching tooth into abutment against the collar and thereby biases the latching tooth for engagement into a latching recess, and, when the wobble joint fitting runs off, one of the wedge segments which is in a clamping position moves in a circumferential direction and causes the control part to rotate and the actuating portion slides along the actuating flank and the latching tooth comes into contact with a latching recess.

A wobble joint fitting for an adjustment device of a motor vehicle seat comprising:

• a first fitting part comprising an internal ring gear;
• a toothed eccentric gear engaging the internal ring gear and comprising an eccentric hole and an annular collar having a cylindrical inner or outer surface;
• an eccentric comprising a rotatable drive part, a control part and wedge segments, configured and adapted to cause the toothed eccentric gear to engage the internal ring gear of the first fitting part, the eccentric configured and adapted to maintain the wedge segments in engagement with the collar, the control part comprising control surfaces coming to abut against the wedge segments;
• a second fitting part operatively connected to the toothed eccentric gear and adjustable with respect to the first fitting part, wherein the cylindrical inner or outer surface has a circumference and the cylindrical outer surface comprises latching recesses distributed over the circumference of the surface, a latching part is provided having at least one latching tooth, the latching tooth in a non-actuation position of the latching part is out of engagement with a latching recess and is biased in an actuation position of the latching part into engagement with a latching recess, the latching part further comprises an actuating flank, and the control part comprises an actuating portion coming to abut against the actuating flank and, during a rotary movement of the control part, presses the latching tooth into abutment against the collar and thereby biases the latching tooth for engagement into a latching recess, and wherein the actuating flank defines a thickened portion that widens the latching part at an angle oblique to a radial direction.