Method for producing a spindle drive of an adjustment device of a motor vehicle seat
AssigneeC. Rob. Hammerstein GmbH & Co. KG
InventorsWilfried Beneker, Ivica Stanic
Life of this patent
Estimating the term…
Abstract
In the method for producing a spindle drive of an adjustment device of a motor vehicle seat, the adjustment device comprises a spindle and a nut unit. The nut unit comprises a nut made from plastic and a retainer in which the nut is retained. The nut has an internal thread which is in engagement with the spindle and has recesses in its outer jacket. The method comprises the following steps: the tube section is pushed over the nut during assembly, the nut is located within the tube section, the tube section, in the areas in which the recesses of the nut are located, is deformed into the area of the recesses and a portion of material of the tube section is located in the recesses.
Claims15
A method for producing a spindle drive of an adjustment device of a motor vehicle seat, the method comprising:
- assembling a spindle, an electric motor for driving the spindle a nut unit comprising a nut made from plastic, an internal thread placed into engagement with the spindle, and an outer jacket delimited by a cylinder and having recesses defining at least one peripheral furrow, and a retainer configured as a tube section having an inner space generally adapted to the outer jacket, wherein the assembling step includes the following:
- arranging the tube section and the nut substantially coaxially,
- pushing the tube section over the nut during assembly,
- locating the nut within the tube section,
- deforming the tube section in areas in which the recesses of the nut are located toward the inside and into an area of the recesses, and forming annular deformations reaching into at least some of the recesses so that a portion of material of the tube section is located in the recesses, and
- retaining the nut in the tube section.
Dependencies are inferred from the claim text.