Abstract: The invention relates to a belt tightening drive for tightening a safety belt which can be wound up around a winding shaft, said belt tightening drive comprising an electric motor, a spindle shaft and a output wheel coupled with the winding shaft and a worm gear, by way of which the output wheel is driven by the spindle shaft, wherein for the formation of the worm gear an external helical gear of the output wheel is combing with a worm drive supported torsionally rigid on the spindle shaft and it is provided according to the invention that the external gear of the output wheel comprises at least two gear sections, wherein a first gear section comprises a gear with constant geometry and a following second gear section is designed with an increasing root circle diameter and/or increasing tip circle diameter and/or increasing tooth thickness.

Abstract: An adjustment mechanism, particularly for the longitudinal adjustment of a seat of a motor vehicle, with a transmission housing (30) fastened at a first part (10), which is displaceable in reference to a second part (12), with a transmission being arranged inside the transmission housing (30). A spindle (40) projects from the transmission housing (30). The spindle (40) is coupled via a nut element (50) to a second part (12). The transmission housing (30) is made from plastic, with at least one repeatedly angled metal insert (60, 70) being embedded in the plastic. At least one wall (60b) of the metal insert (60, 70) is aligned orthogonal in reference to the axis (A) of the spindle and at least partially encompasses the spindle (40) on the side of the transmission housing (60) allocated to the nut element (30).

Abstract: The invention relates to a connecting structure for mechanical connection of a first housing with a second housing, whereby one face of the second housing has a hollow cylindrical recess for inserting the first housing; according to the invention it is provided that (i) the hollow cylindrical recess is formed of a ring-shaped collar, and (ii) for producing a frictional connection of the first housing with a second housing, the collar has at least one tensioning element, which in radial direction with respect to the collar is in active connection with the first housing.

Abstract: The invention involves a gearbox, especially for adjustment devices in motor vehicles, with a plastic worm drive. The invention provides that the worm drive has an encircling, circular flat contact surface perpendicular to the worm axle and a number of removal pockets in the form of recesses that are interposed axially between contact surface and the worm axle and at the same time arranged in a level recessed to the level of contact surface, whereby an encircling bevel is formed in the transition area from level of removal pockets to the level of the circular contact surface.

Abstract: The invention relates to a gear housing for a planetary gear, for the purpose of accommodating the toothed components, which form the planetary gear, having a hollow cylindrical housing body comprising an inner toothing, wherein said housing body can be connected on both end faces thereof to a mounting flange, wherein according to the invention, the configuration includes—the housing body and at least one mounting flange are designed to each overlap axially on end faces thereof to form an overlap region,—in the overlap region, the housing body and the at least one mounting flange are designed with a press connection, and—at least in the overlap region, a material that is transparent to laser light, and a material that is not transparent to laser light, are included as the materials for the housing body and for the at least one mounting flange.

Abstract: The invention relates to a multi-stage planetary drive with at least two annulus gears with internal gears, connected to a housing in a torque-proof fashion, and with at least two sun gears, each of which combing planet wheels arranged on a pinion cage and an annulus gear; according to the invention it is provided that for the formation of a gear speed with at least one annulus gear, the housing is embodied in one piece as a cylindrical transmission housing with internal gears, for the formation of at least one additional gear speed a plastic annulus gear with internal gears is accepted by the transmission housing, and for the torque-proof connection of the plastic annulus gear to the transmission housing torque-proofing means are provided.

Abstract: A longitudinal adjustment mechanism is provided for a seat, with a spindle guide nut (12) that can move on a spindle (10), which can be driven by a worm gear (14) with bearing sleeves (15) on both sides, as well as with a multi-part casing (20, 30) that receives the worm gear (14) and the spindle (10). The casing (20, 30) consists of two casing sections (20, 30) made of plastic, which can be inserted into one another in the axial direction (X) of the spindle (10); each casing section (20, 30) has a plate (21, 31), from which bars (22, 23, 24; 33) jut out on one side and the casing sections (20, 30) are permanently joined to one another. The mechanism provides a compact transmission for longitudinal seat adjustment mechanisms that is easy to assemble.

Abstract: The invention concerns a gearing for an adjustment device, especially an automotive adjustment device. Included is a threaded spindle as well as a spindle nut sitting on the threaded spindle, while inside a housing of the gearing. On either side of the spindle nut, there is provided a bearing bush to mount the spindle nut inside the gearing housing, while at least one of the bearing bushes consists of flexible material and is clamped under prestressing between the gearing housing and the spindle nut.

Abstract: A gear mechanism with at least a flange for the adaptation of the gear mechanism to a drive component and with at least one ring gear, which is firmly connected on the gear side to the flange. The flange presents at least a radial flange bore, the ring gear presents at least a radial ring gear bore, and a pin is led through a pair consisting of such a radial flange bore and such a radial ring gear bore, and in the process the flange and the ring gear are braced firmly against each other. The flange bore and the ring gear bore may be arranged with partial overlap in the axial direction and simultaneously partial mutual offset by an offset difference.

Abstract: The invention relates to a revolving gear mechanism with at least two gear wheels which mesh mutually, forming an engagement space, of which one is a revolving gear wheel which is mounted rotatably by means of a bearing on a bolt, and a lateral surface of the bolt forms a bearing surface. According to the invention, at least one axial longitudinal groove is arranged on the lateral surface of the bolt.

Abstract: To render a gear arrangement for a transmission as quiet as possible but nevertheless able to handle heavy loads, a first gear made of a first material and a second gear made of a second material sit loosely next to one another on a common shaft. The elasticity of the first gear, preferably made of plastic, is chosen to be greater than that of the second gear, preferably made of metal, while the strength of the second gear is chosen to be greater than that of the first gear. Because the second gear preferably exhibits a slightly smaller toothing than the first gear, only the first gear comes into engagement with another gear in normal operation. As the load increases, the first gear made of plastic yields in the elastic range so that now the second gear made of metal also comes into engagement in order to accept the forces occurring and thereby protect the first gear against overloading and fracture. The gear arrangement is generally suitable for transmissions, for example for planetary transmissions.

Abstract: The invention relates to a spindle bearing arrangement for a longitudinal seat adjusting gear, which has a housing which can be attached by an attaching device on a vehicle-side component or on a seat component, whereby a spindle opening for guiding a spindle along a spindle opening axis runs through the housing and whereby an inner thread in the housing in the area of its spindle opening is formed to engage into a spindle run through in this manner, for shifting the housing and the spindle relative to each other along the spindle opening axis. The spindle bearing becomes advantageous in that the inner thread is formed in a spindle nut and the spindle nut is adjustably supported in the housing relative to the spindle opening axis.

Abstract: An adjusting device (10) is provided for a vehicle subassembly to be adjusted. The adjusting device has an adjusting motor which, via an adjusting mechanism, drives a toothed rocker (12) assigned to the vehicle subassembly to be adjusted. The adjusting mechanism structurally reinforces the vehicle subassembly to be adjusted, and an adjusting worm (20) of the structurally reinforcing adjusting mechanism acts directly on the toothed rocker (12).

Abstract: A gear for an adjusting device with includes a gear spindle (5) and a spindle nut (30) exhibiting an internal thread (32). The spindle nut (30) rests on the spindle (5) and the inner thread (32) of the spindle nut (30) engages with the spindle thread (27). A bearing sleeve (15), which exhibits a bearing section (19) for supporting the spindle nut (30), is provided on either side of the spindle nut (30). At least one bearing sleeve (15) has a guide section (25) for guiding the spindle nut (30) relative to thread spindle (5).

Abstract: A lead screw nut support arrangement includes a wall having a width and a through hole that passes through the wall. A support bushing passes through the through hole in the axial direction, leaving an amount of play, and having a length greater than the thickness of the wall. The support bushing is supported in the through hole movably in the axial direction. A lead screw nut is also included whose end face adjoins a first end face of the support bushing on the inner side of the wall. The support arrangement also includes a mount that braces a second end face of the support bushing against the lead screw nut such that the lead screw nut is elastically loaded in the direction away from the wall.

Abstract: The present invention is directed to a shaft with two front sides and an axis of rotation, whereby the shaft comprises at least one gear with the same axis of rotation, which gear borders at least a first one of the front sides in an axial area. Viewed from radially inside toward radially outside, the gear comprises a connection part with a central receptacle for the shaft, and an outer part with teeth. The connection part is cast directly between the shaft and the outer part. The connection part extends over the shaft in axial direction and covers the first front side.

Abstract: The invention relates to a holding device (5) of a seat slide drive for a motor vehicle, wherein the holding device (60) is designed as a metallic block, wherein the holding device (60) is provided with a through-bore (61), in which one end of the spindle (5) is placed and is held there by material (60z) of the holding device (60) pressed into the spindle thread (5a) as spindle (5).

Abstract: The invention concerns a gearwheel (1) with a gear rim (2) and an insert (3) whose external diameter (d3) is greater than half of the external diameter (d1) of the gearwheel (1), wherein the insert (3) is surrounded by injection molding by means of a cone mold during the manufacture of the gearwheel. In particular, the gear rim (2), including gear teeth on the external circumference, is formed at the same time during the injection molding process.

Abstract: A plastic slip clutch for an adjustable drive in an automobile includes a hub (3) which exhibits an inner profile (4), and a shaft (1) which exhibits an outer profile (2). For the purpose of transmitting torque, the shaft with the outer profile is introduced into the inner profile of the hub in form-fitting and force-fitting fashion. The inner profile (4) of the hub (3) exhibits plastic elements (5) for the transmission of force, such that the plastic elements (5) become elastically deformed under the effect of a force exceeding a given threshold force and thereby permit the outer profile (2) of the shaft (1) to slip through inside of the hub (3).

Abstract: The invention relates to a gear mechanism with at least a flange for the adaptation of the gear mechanism to a drive component and with at least one ring gear, which is firmly connected on the gear side to the flange. It is advantageous to use a connection where the flange presents at least a radial flange bore, the ring gear presents at least a radial ring gear bore, and a pin is led through a pair consisting of such a radial flange bore and such a radial ring gear bore, and in the process the flange and the ring gear are braced firmly against each other. In particular, the flange bore and the ring gear bore are arranged with at least partial overlap in the axial direction and simultaneously partial mutual offset by an offset difference.