A driving device and a seat adjusting mechanism for vehicle are provided. The driving device includes a motor and a gearbox. The gearbox includes a worm and a worm gear. The worm is fixedly connected to an output shaft of the motor. The gearbox further includes first and second driving gears, and first and second driven gears. The first and second driving gears are coaxially fixed to the worm gear and located at two sides of the worm gear, respectively. The first and second driven gears are fixed coaxially with each other and engaged with the first and second driving gears, respectively. Two driving gears are arranged at the two sides of the worm gear symmetrically, and two driven gears are also arranged at the two sides of the worm gear symmetrically, which results in a compact structure and reduced volume of the driving device.

The invention relates to a transmission drive assembly (10) having a drive motor (11) the drive shaft (23) of which protrudes with a portion (25) thereof into a transmission housing (12), wherein the drive shaft (23) is arranged on the side facing the transmission housing (12) in a bearing (32) which is held in a form-fit or force-closed manner in a substantially sleeve-shaped holding element (35; 65) which is arranged in a holding fixture (27) of the transmission housing (12). According to the invention, in an installation position for introducing and positioning the holding element (35; 65) in the holding fixture (27) of the transmission housing (12), the holding element (35; 65) is positioned in a first axial end position defined by an abutment element (30) of the drive motor (11), and, in an end position of the drive shaft (23) in the transmission housing (12), the holding element (35; 65) can be slid by means of a sliding element (47; 61; 62, 63) on the drive shaft (23) into a second axial end position which is axially remote from the at least one abutment element.

The invention relates to a transmission drive assembly (10) having a drive motor (11) the drive shaft (23) of which protrudes with a portion (25) thereof into a transmission housing (12), wherein the drive shaft (23) is arranged on the side facing the transmission housing (12) in a bearing (32) which is held in a form-fit or force-closed manner in a substantially sleeve-shaped holding element (35; 65) which is arranged in a holding fixture (27) of the transmission housing (12). According to the invention, in an installation position for introducing and positioning the holding element (35; 65) in the holding fixture (27) of the transmission housing (12), the holding element (35; 65) is positioned in a first axial end position defined by an abutment element (30) of the drive motor (11), and, in an end position of the drive shaft (23) in the transmission housing (12), the holding element (35; 65) can be slid by means of a sliding element (47; 61; 62, 63) on the drive shaft (23) into a second axial end position which is axially remote from the at least one abutment element.

A method is disclosed for preparing a steering gear for subsequent use as part of a steering system of a motor vehicle, the steering gear includes at least a gear and a pinion meshing with the gear, and at least the teeth of the gear and/or of the pinion being made of plastic. The pinion is first pressed against the gear by way of a first force, while at the same time the pinion and the gear are rotated first in a first direction of rotation and subsequently in the second direction of rotation. The first force is preferably selected so high that plastic deformation of the plastic of the pinion and/or of the gear is achieved. Subsequently, the pinion is pressed against the gear by way of a second, defined force, which is less than the first force, the second force being permanently set.

A gearbox assembly including a housing, an output shaft, a wheel gear that is fixed to the output shaft, and an input shaft. A torsion bar that connects the input shaft to the output shaft, an electric motor, a worm gear that is rotationally fixed to the rotor and engages the wheel gear to transfer torque from the motor to the output shaft, and a key lock assembly. A seal assembly is provided that isolates the locking collar from the wheel.

A gearbox assembly including a housing, an output shaft, a wheel gear that is fixed to the output shaft, and an input shaft. A torsion bar that connects the input shaft to the output shaft, an electric motor, a worm gear that is rotationally fixed to the rotor and engages the wheel gear to transfer torque from the motor to the output shaft, and a key lock assembly. A seal assembly is provided that isolates the locking collar from the wheel.

A vehicle steering column includes a support unit and by which an actuator unit is held in which a steering spindle is mounted to rotate about a longitudinal axis. An adjustment drive is disposed between the support unit and the actuator unit and by which the actuator unit is adjustable. The adjustment drive has a threaded spindle which engages in a spindle nut and has a spindle axis. The spindle nut and the spindle are drivable by a servomotor to rotate in a mutually relative manner. The servomotor has a motor shaft which is coupled to a drive gear which is rotatable about a drive axis and which operatively engages with an output gear which is rotatable about the spindle axis and is connected in a rotationally fixed manner to the spindle nut or the threaded spindle. The drive axis and the spindle axis are disposed mutually parallel.

An electric control box for control of linear movement includes a base seat having a concave recess at an upper side thereof; a push rod gear being installed at a left wall of the recess of the base seat; the push rod gear being extended with a push rod teeth; a motor being installed within an upper cover; the motor can driven the push rod gear; a movable table driven by the push rod and capable of moving linearly; a push rod being installed at a front end of the moving table and extending out of the moving table; and two sliding tracks being installed with respective teeth strips; two sides of the movable table being installed with respective moving gears for engaging with the teeth strips so that the moving table is movable thereon; and thereby, the moving table is movable along the two sliding tracks.

An electric control box for control of linear movement includes a base seat having a concave recess at an upper side thereof; a push rod gear being installed at a left wall of the recess of the base seat; the push rod gear being extended with a push rod teeth; a motor being installed within an upper cover; the motor can driven the push rod gear; a movable table driven by the push rod and capable of moving linearly; a push rod being installed at a front end of the moving table and extending out of the moving table; and two sliding tracks being installed with respective teeth strips; two sides of the movable table being installed with respective moving gears for engaging with the teeth strips so that the moving table is movable thereon; and thereby, the moving table is movable along the two sliding tracks.

A transmission housing (1) comprising a shaft (2) housed at least partially inside the housing (1) and, mounted on said shaft (2), at least one rotary element (3) and a rolling bearing (4), the rolling bearing (4) comprising an inner ring (5) and an outer ring (6) that are coaxial, separated from each other by rolling members (7). The housing (1) further comprises a blind or through tubular body (8) mounted on the shaft (2) and interposed at least partially between the shaft (2) and the rotary element (3), the rotary element (3) being mounted rotatably secured to the tubular body (8), and the tubular body (8) being kept rotatably secured to the shaft (2) by the inner ring (5), referred to as the constriction ring, of the rolling bearing (4), force-fitted onto said tubular body (8).