# US 9,517,589 B2 · Method for mounting adjustable mechanism for motor vehicle > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 9,517,589 B2 - Document ID: US9517589B2 - Status: Granted - Kind: B2 - Application number: 14/451,306 - Filed: 2014-08-04 - Published: 2015-01-22 - Granted: 2016-12-13 - Earliest claimed: 2003-08-08 - Assignees: Brose Fahrzeugteile GmbH & Co. KG, Coburg - Applicants: Brose Fahrzeugteile GmbH & Co. KG, Coburg - Inventors: Matthias Hoffmann; Andrea Bauersachs; Andreas Prause - Web page: https://patentgrep.com/patent/US9517589B2 ## CPC - B29C 66/344: {Stretching or tensioning the joint area during joining} - B29C 45/1671: {with an insert} - B29C 65/16: Laser beams - B60N 2/067: {by linear actuators, e.g. linear screw mechanisms} - B60N 2/2231: {Worm and worm gear articulations} - B60N 2/933: {rotatable} - F16H 55/22: for transmissions with crossing shafts, especially worms, worm-gears - F16H 57/039: Gearboxes for accommodating worm gears - B21D 53/90: axle-housings - B29C 2045/1601: {the injected materials not being adhered or bonded to each other (B29C45/0017 takes precedence)} - B29K 2105/25: {Solid} - F16H 1/16: comprising worm and worm-wheel - F16H 25/20: Screw mechanisms (with automatic reversal F16H25/12) - F16H 2057/02086: {Measures for reducing size of gearbox, e.g. for creating a more compact transmission casing} - F16H 2057/02091: {Measures for reducing weight of gearbox} - Y10T 29/49464: Assembling of gear into force transmitting device - Y10T 29/49465: Gear mounting - Y10T 74/18664: Shaft moves through rotary drive means - Y10T 74/19828: Worm - B29C: SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING (making preforms B29B11/00; making laminated products by combining previously unconnected layers which become one product whose layers will remain together B32B37/00 - B32B41/00) - B60N: SEATS SPECIALLY ADAPTED FOR VEHICLES; VEHICLE PASSENGER ACCOMMODATION NOT OTHERWISE PROVIDED FOR - F16H: GEARING - B21D: WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL (working or processing of wire B21F) - B29K: INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR {MOULDS, } REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract An adjustable mechanism for a motor vehicle is used to adjust an adjustable element in a motor vehicle, especially a seating part. The mechanism includes a spindle nut comprising an axis, the spindle nut co-operating with a thread spindle and comprising external toothing on the external surface thereof which is in contact with an additional drive element. The external toothing of the spindle nut is formed by recesses in the external surface of the spindle nut which are inwardly turned in a radial manner, the teeth depths thereof diminishing in the direction of at least one axial end of the spindle nut. ## Claims ### Claim 1 A method for mounting an adjustable mechanism mounted in a gearbox housing for a motor vehicle, the method comprising: engaging a housing part with a further housing assembly unit along an installation axis, and melting an end section of the housing part with the further housing assembly unit, and tensioning the housing part and the further housing assembly unit elastically against one another along the installation axis during the melting such that the housing part and the further housing assembly unit are settled with respect to each other along the installation axis during the melting. ### Claim 2 (depends on 1) The method according to claim 1, further comprising a tension device engaging the housing part and/or the further housing assembly unit in order to tension the housing part and the further housing assembly unit relative to one another. ### Claim 3 (depends on 2) The method according to claim 2, wherein the tension device engages on an associated element of the gearbox housing with the interposition of an elastic element. ### Claim 4 (depends on 1) The method according to claim 1, wherein the housing part and the further housing assembly are tensioned relative to one another in a direction which has a direction component extending transversely or perpendicularly to the installation axis. ### Claim 5 (depends on 1) The method according to claim 1, wherein the further housing assembly unit comprises a second housing part, and wherein the housing part and the second housing part are fixed directly one against the other. ### Claim 6 (depends on 1) The method according to claim 1, wherein the further housing assembly unit is housed between the housing part and a second housing part, the method further comprising engaging whereby the two housing parts with the housing assembly unit and fixing them to the housing assembly unit such that material of at least one of the two housing parts and of the housing assembly unit is fused together, wherein the two housing parts are tensioned relative to each other wherein at least one of the two housing parts is also tensioned relative to the further housing assembly unit. ### Claim 7 (depends on 6) The method according to claim 6, further comprising tensioning the two housing parts against one another along the installation axis, relative to one another along a direction which has a direction component perpendicular to the installation axis, or relative to each other along a direction extending perpendicular to the installation axis. ### Claim 8 (depends on 6) The method according to claim 6, wherein the further housing assembly unit is formed by two housing elements which are opposite one another and oriented perpendicular to the two housing parts. ### Claim 9 (depends on 1) The method according to claim 1, wherein the housing part comprises a housing plate. ### Claim 10 (depends on 1) The method according to claim 1, wherein during melting of the material the at least one housing part settles relative to the further housing assembly unit, wherein the settling occurs in a direction of an elastic pretension. ### Claim 11 (depends on 1) The method according to claim 1, wherein the material is melted by a laser, wherein non-melting areas of the housing are made from material which is permeable to a laser beam of the laser. ### Claim 12 (depends on 1) The method according to claim 1, wherein a duration of the melting process is controlled from a predeterminable criterion. ### Claim 13 (depends on 12) The method according to claim 12, wherein the duration of the melting process is controlled in dependence on a settling of the at least one housing part, particularly in dependence on a speed or the dynamics of the settling, or on the extent of the settling, or in dependence on a change in a reaction force during tensioning of the housing part relative to the further housing assembly unit. ### Claim 14 (depends on 12) The method according to claim 12, wherein the duration of the melting process is fixed at a start of the melting process. ### Claim 15 (depends on 1) The method according to claim 1, wherein a clearance is defined between the housing part and the further housing assembly unit, the clearance configured to accommodate a melted mass formed by the melting of the material. ### Claim 16 (depends on 15) The method according to claim 15, wherein the clearance is defined by a push-in area. ### Claim 17 (depends on 1) The method according to claim 1, further comprising monitoring a quality of a connection between the housing part and the further housing assembly unit during the melting process with respect to movement of the housing part relative to the further housing assembly unit. ### Claim 18 (depends on 17) The method according to claim 17, wherein the melting is accomplished by using a laser, wherein the laser is regulated in dependence on the speed of the settling. ### Claim 19 (depends on 1) The method according to claim 1, wherein the housing part and the further housing assembly unit comprise plastics.