Abstract: This invention deals with a system and method for manufacturing a drive gear having a plurality of teeth in cross section where the teeth are situated on a drive shaft in a substantially parallel manner. The drive gear is characterized in that the teeth are substantially parallel to each other and contact mating driven teeth at points which define an arc which is not concentric about an axis of the driven gear. The drive gear is characterized in that it has multi-tooth contact points which do not contact the teeth of the mating gear at exactly the same contact point on the mating teeth, thereby lengthening the life of the driven gear as well as distributing the torque load to a plurality of teeth. A method and procedure for generating a drive gear having the features of the present invention is also disclosed.

Abstract: A movement actuator includes first and second modules that are constructed to fit together in different manners. The first module includes first and second actuator parts mounted for rotation relative to one another, a gear wheel rotatable arranged in the second actuator part, and a transmission system including a coupler coupled to the gear wheel and a worm wheel. The second module includes a motor housing and an electromotor mounted in the housing and having a drive shaft having mounted thereon a worm. When the two modules are coupled together, in any of the different manners, the worm engages the worm wheel, thereby coupling the electromotor through the transmission system and gear wheel to the actuator parts. As a result, the electromotor is operable to rotate the actuator parts relative to each other.

Abstract: A worm gear is connected to a machine tool component and has teeth mating with teeth on a power driven worm rotatably supported by a housing enclosing the worm. A clamping shoe is supported for sliding movement within a slot in the housing and has a compound curved inner surface positioned to engage the teeth on the worm. A cam shaft is supported for rotation by the housing and extends laterally through a hole within the clamping shoe. A fluid cylinder is connected to rotate the cam shaft for moving the clamping shoe radially between a released position and a clamping position pressing the teeth on the worm against the teeth on the worm gear by slightly deflecting the worm to lock the head from any movement.

Abstract: The present invention is a ball worm and worm gear device which is a ball worm structure consisting of an arbor, a helix body and a housing where the said helix body further consists of a back-flow socket pipe that encase the arbor and a helical socket pipe that further encase the said back-flow socket pipe; Both the two socket pipes possess a back-flow channel and a helical channel respectively, having helical shapes but in opposite directions with their inlets and outlets connected each other, to form inner and outer channels of the helix body; These channels contain many balls which are constrained in the channels of the helix body to keep them from dropping off by encasing the housing around the helix body.

Abstract: A swinging head gear shell for an electric fan is provided and includes a body and a cover respectively molded from reinforced engineering plastics. The body has a mounting plate for mounting with screws, a first open top chamber and a second open top chamber linked in parallel and adapted for receiving a swinging head gear. The body has a plurality of screw holes for the mounting of the cover, and a vertical locating barrel through which one gear shaft of the swinging head gear passes. The mounting plate has a circular through hole through which the worm of the swinging head gear passes. The cover overlays the body to close the first open top chamber and the second open top chamber, and has a plurality of mounting holes respectively fastened to the top screw holes of the body by screws. The cover has a raised portion, and a through hole formed in the raised portion in communication with the second open top chamber for the control lever of the swinging head gear to pass.

Abstract: A device for driving of sliding roofs, window raisers, or the like, especially of motor vehicles, with a reversible drive motor (1) and a worm gear pair on an output side of the drive motor, with a shaft of a worm gear (2) forming an extension of the motor shaft. The axial play of the worm gear shaft (2) is adjustable by an adjustment part (4) which rests against a distal end of the worm gear shaft (2) and which is movably guided in an axial direction of the worm gear shaft (2). The adjustment part (4) can be pressed against a stationary guide surface (17) by a positioning screw (12) which is screwed into an opening of this guide surface (17) or by a fastening rivet (22) which penetrates a hole (23) in the guide surface. The longitudinal axis of the screw (12) or rivet (22) is at least approximately perpendicular to the worm gear shaft axis (9).

Abstract: A gear unit (1) for focusing microscopes and having coarse adjustment, fine adjustment and extra-fine adjustment is described, in which, for the purpose of focusing, the object stage (5) is moved via a toothed gear (6). Coaxially arranged control knobs (7, 8) are provided on the microscope as manual control elements. The control knobs (7, 8) are connected via a drive shaft (9) and the gear unit (1) to a toothed rack (10) of the object stage. The control knob (7) for fine adjustment is provided on a rotation shaft (11) arranged so as to be capable of longitudinal displacement. Arranged on this rotation shaft (11) are at least two gear wheels (12, 13) of different diameter for fine adjustment and extra-fine adjustment. One of the gear wheels (12, 13) is connected to the gear unit (1) via the longitudinal displacement of the rotation axis (11).

Abstract: A geared electric motor 1 used for power window apparatuses, for example, which is provided with an mature 7 having an armature shaft 7a, an output shaft 8 connected with the armature shaft 7a through a worm gear pair (7a7 and 17) and two friction plates 9 and 10 to be in contact with both end faces of the armature shaft 7a. The armature shaft 7a of this motor 1 is prevented from rotation by frictional resistance generating between the friction plates 9, 10 and the armature shaft 7a even if the output shaft 8 is applied with rotatory force.

Abstract: The device has springs arranged diametrically opposite with respect to a shaft that is coupled to a generator of torsional vibrations. The springs are rigidly coupled between first supporting elements that rotate with the shaft and second supporting elements that are rigidly coupled to a gear system that is freely mounted on the shaft. The gear system is coupled to a motor for actuating rotation of the shaft.

Abstract: Drive device for a part of a motor vehicle which can be moved between end positions, with an electric motor which is joined via a reducing gear to a driving pinion which sits on a driven shaft, and which for its part is drive-connected to the displaceable part, and with an electrical circuit which has switching means and which controls the motor for shutting off the motor in a predetermined position of the displaceable part. The reducing gear and electrical circuit are accommodated in separate housing parts which are detachably joined to one another to enable flexible matching to different circuit layouts. The gear housing part is produced as a metal die casting and the electric housing part as an injection molded plastic part.

Abstract: A slidable washer (30) has a cylindrical part and a plane part joined thereto. The cylindrical part is placed between an inner circumferential face of a wheel gear (24) and an outer circumferential face of a boss part (23) of a gear housing (22) in order to reduce the frictional force caused during sliding movement therebetween. Further, the plane part joined to the cylindrical part is placed between a side (24b) of the wheel gear (24) and a base (22a) of the gear housing (22) so that the sliding frictional force therebetween is reduced and the cylindrical part of the slidable washer (30) is prevented from inclining toward the axial direction of the boss part (23).

Abstract: A system for coupling a motor with a worm speed reducer in which the work hours for assembling the worm speed reducer to the motor can be reduced, and the size and the weight of the reducer can also be minimized. A side of the worm speed reducer case 2 coupled to the motor case 1 is made to comprise an open face and through the open face, a worm gear G is installed inside the speed reducer case 2. A worm W is formed on the circumference of a projected free end of a motor spindle 7 and the bearings for the motor spindle 7 are mounted in a motor case flange 9. The open face of the speed reducer is covered with the flange 9 and the reducer case and the flange 9 are firmly clamped by bolts, thus releasably coupling the motor to the speed reducer.

Abstract: A rotating apparatus for rotating an object utilizes a worm gear in which worm wheel torque supplied from a rotation table can be transferred to a worm gear. In this way the invention avoids a conventional disengaging mechanism that disengages the rotating apparatus when torque is supplied from the rotation table. Further, spring members and stoppers physically define a first and second rotation ranges and a split cam shuts off a drive motor within the first rotation range. Still further, an anti-backlash member is provided on the worm gearing. To prevent pinched fingers and dust accumulation, a skirt is preferably provided on the bottom, front edge of the object being rotated which closes a gap between the object and a support surface when the object is placed on the rotating apparatus.

Abstract: An electric starter includes a metal base plate which supports the body of a starter head which is actuated by a lever articulated on an articulation support member. The articulation support member is carried by the base plate, on which it is formed by being molded in a plastics material. A crown having internal teeth is also molded on to the base plate in a plastics material, simultaneously with the molding of the support member. The support member and the toothed crown are two separate components, each formed in the mold from a separately injected, separate charge of plastics material.

Abstract: A drive device for a part of a motor vehicle which can be moved between end positions, especially for a movable cover of a vehicle roof, with an electric motor which is joined via a reducing gear to a driving pinion which sits on a driven shaft that is drive-connected to the movable part, and with a switching means which controls the motor for shutting off the motor in at least one predetermined position of the movable part which is actuated by a ratchet wheel which is caused to rotate less than 360.degree.

Abstract: When drawbacks which prevent driving of a portion to be driven arise, an excessive load is not applied to components in a drive system so that damage of the components can be prevented. Thrust force, i.e., force in the direction along an axis of rotation (in the direction of arrow B) is applied to a movable worm gear due to the excessive load. When the thrust force becomes larger than urging force of a compression coil spring, the movable worm gear moves axially in the direction of arrow B against the urging force of the compression coil spring. A pin is disengaged from a groove by the axial movement of the worm gear so that the torque of the rotating shaft is not transmitted to the worm gear. As a result, the drive force is not transmitted to the drive system of the downstream side of the movable worm gear. Accordingly, damage such as breakage of teeth of gears due to the excessive load applied to each gear can be prevented.

Abstract: A machine element in the form of a screw gear having a threaded circumferential portion adapted to be engaged by a standard thread screw used as a worm is disclosed. Relative rotation of the standard thread screw with respect to the threaded portion of the screw gear causes the screw gear to also relatively rotate. Additionally, linear motions of the screw are possible wherein the screw gear acts as a pinion while the standard thread screw acts as a rack. This screw gear and its associated standard thread screw can be operated as either a worm and gear or as a rack and pinion. The screw gear and/or standard thread screw engaged therewith may be manually or power operated. The screw gear can be made by cutting or forming a threaded circumferential portion on the screw gear blank with a standard screw tap of the same size as the standard thread screw with which the screw gear is to be used. Additionally the screw gear can be formed in other conventional manner such as by molding.

Abstract: A vehicle transfer case for changing between two- and four-wheel modes of operation has a transmission with an inventive stop. The stop extends radially outwardly beyond the nominal height of gear teeth on a worm gear in the transmission. The stop engages a worm which is part of the transmission at a location outside of a primary contact area between the worm and worm gear. When the stop contacts the worm it stops further rotation of the worm gear. The motor for the worm gear is reversible such that both the worm and worm gear can rotate in either direction. A single stop defines two circumferentially spaced ends of travel. Since the stop contacts a moving surface on the worm, there is a reduced likelihood of seizure when compared to the prior art.

Abstract: A worm type reduction gear mechanism includes a worm, a multiplicity of balls, a ball receiving outer cylinder, a body casing and a worm wheel. A worm shaft is formed with at least one helical ball race and therein with a ball circulation passage extending therethrough and communicating with the ball race to form a circulation circuit. The balls are arrayed in the ball race and the ball circulation passage of the worm shaft and are allowed to run therein and circulate therethrough. The ball receiving outer cylinder is formed with meshing holes and fits the worm rotatably so that the balls may contact with the inner face of the ball receiving outer cylinder. The worm wheel is rotatably supported in the body casing and formed in its circumference with ball meshing teeth which are cut at the pitch or lead interval of the ball race. The balls of the worm are arranged so as to mesh with the ball meshing teeth of the worm wheel in the meshing holes of the ball receiving outer cylinder thereby to transmit the power.

Abstract: A rotatable apparatus includes a pair of rotatable members joined by a stress dissipating structure. The stress dissipating structure can be employed in a gear, sprocket, clutch or the like. In one embodiment of the present invention, antibuckling plates generally spanning between a hub and rim define a hollow cavity. In another embodiment of the present invention, the stress dissipating structure includes a specifically configured sets of nodules moving the hub and rim. An additional aspect of the present invention provides a stress dissipating structure employing various anti-buckling plate attachment constructions. In still another embodiment of the present invention, a uniquely sized and packaged gear, gear housing and/or motor are employed in order to maximize output force per pound of material efficiencies.

Abstract: An adjustable set bearing for a gear assembly for a power seat adjuster on a vehicle, wherein the gear assembly couples a motor output shaft to a lead screw. The gear assembly is contained in a housing assembly and includes a first gear rotatably mounted to the housing and having connecting means to the motor output shaft. The first gear has end journals and a worm disposed therebetween. A second gear is carried for rotation on the lead screw and is in meshing engagement with the first gear. The housing assembly includes adjustable supporting means for supporting an end journal. The adjustable supporting means includes an adjustable set bearing that is threadably insertable into an access port into contact with an end journal. The adjustable set bearing has an inner smooth concentric surface for supporting an end journal of the worm and allowing rotatable movement of the end journal.

Abstract: Apparatus for tightly wrapping a package such as disposed on a pallet in a thin film such as for shipping or storage includes a rotating deck adapted to receive the pallet and package to be wrapped. The deck is directly coupled to and supported by a gear box driven by an electric motor. The apparatus further includes a film wrap supply in the form of a roll which lets out the film for wrapping around the package as the deck and package rotate. A manually adjustable tensioner allows for adjusting the stretch of the wrapping film on the package, while the film wrap supply may be adjusted vertically to permit wrapping the package over its entire vertical dimension regardless of the width of the roll of film wrap. A foot control allows an operator of the apparatus to rotate the deck and the package being wrapped while vertically moving the film wrap supply roll to fully enclose the package within the wrapping film.

Abstract: An apparatus is responsive to a reaction force of intermeshing gear members that transmit force through an angle. The gear members include an elongated enveloped worm with a longitudinally extending axis of rotation and an output gear with an axis of rotation offset from and perpendicular to the longitudinally extending axis of the worm gear. The worm gear is movable axially in response to a predetermined reaction force or predetermined torque force. At least one biasing member is disposed adjacent one end of the worm gear, and preferably both ends of the worm gear, for centering the worm gear with respect to the output gear when subjected to a force below the predetermined reaction force or predetermined torque force.

Abstract: A drive unit having a drive gear rotatable about a drive-gear axis mounted on an angle transmission having a housing formed unitarily of one piece with a throughgoing passage centered on a longitudinal axis, a plurality of substantially planar outer faces each extending substantially parallel to the axis, one of the outer faces bearing flatly on the drive unit, a transverse bore opening at and extending between the one face and the passage along an axis transverse to the longitudinal axis, and a plurality of undercut grooves extending longitudinally the full length of the housing and opening at least at the one outer surface. Each of the grooves is substantially narrower at the respective outer face than inward therefrom measured in a direction transverse to itself and parallel to the respective outer face. A main gear is rotatable in the passage about the longitudinal axis and a drive gear is rotatable about the transverse axis in the transverse bore in mesh with the main gear.

Abstract: A gear reduction unit, having first and second worm gears, includes a support member shaped such that a combined gear unit, having the second worm and a first worm gear coaxially formed therein, is held in an operating position by the first worm and a second worm gear engaging the second worm and first worm gear, respectively.

Abstract: An adjusting drive having a gear housing sealed by a gear-housing lid, with a gear wheel or driver rotatably or sluably supported therein. An axial bearing neck is premolded on the gear-housing lid. A radial inner bearing projection concentric to the driver is premolded on the driver and provides a bearing arrangement inside the bearing neck. A radially outer bearing projection is also premolded on the driver and tangentially and sluably supports the gear wheel.

Abstract: An actuator unit for a vehicle door locking device comprises a reversible motor, a gear shaft set to an output shaft of the motor, a rotational output member which rotates by engaging with the gear shaft, a driven lever which is changed in at least two positions in accordance with the rotation of the output member, and a housing for storing the above components. The housing is constituted with a main case and a sub case. A first recess for storing the rotational output member, a second recess for storing the motor, a third recess for storing the gear shaft and support means for supporting a rotating shaft of the driven lever are formed on the main case. The output member fitted in the first recess and the gear shaft fitted in the third recess are constituted so that they maintain a meshing state mutually, and each component in the main case is secured at its home position by putting the sub case on the main case.

Abstract: A detent assembly and control lever assembly in which the tactile resistance to movement at the detent, and in the overall movement of the control arm, are concurrently increased or decreased. The apparatus, in one embodiment, includes a control lever arm assembly, a variable resistance detent assembly, and a control lever friction assembly whose movement is linked to that of the detent assembly.

Abstract: A transmission device for a vertical blind including a housing, a worm disposed within the housing and having an upper flange, a lower flange, and at least two spiral teeth between the upper flange and the lower flange, each of the spiral teeth having an end gradually extending outwardly from the worm, and a worm gear disposed within the housing and meshed with the worm, the worm gear being formed with a partition across a number of teeth thereof.

Abstract: A gear reducer for reciprocal rotation wherein the rotation of a motor 1 is transmitted to a worm pinion 4 integrated with an input shaft 2, and is further transmitted to a helical worm wheel 10. The helical worm wheel 10 and an eccentric member 11 are spline coupled to each other, and a pin flange 13 is rotated by a planetary gear structure of a trochoid-tooth-profile inscribing type. Consequently, a pinion shaft (output shaft) 14 integrated with the pin flange 13 rotates, and an outside gear 19 rotates.

Abstract: An improved declutch mechanism for a manual override for a valve. The declutch mechanism includes a U-shaped declutch layer that is fit with a spring-biased locking bar. The locking bar is biased to engage the housing of the override mechanism to prevent accidental or inadvertent operation of the declutch lever. A single hand may be used to disengage the locking bar from the housing to allow operation of the declutch lever. The declutch mechanism also includes a safety mechanism to prevent the override mechanism from being disengaged when its actuator shaft is not in the default position. The safety mechanism includes a plunger that is movable between a first position in which the plunger prevents the locking bar from being disengaged with the housing, and a second position in which the plunger is received within a keyway in the actuator shaft to allow the locking bar to be disengaged from the housing.

Abstract: A rotating and driving system for a survey instrument, wherein a driven wheel is mounted on a shaft of a movable unit and a slide baseplate is disposed on the shaft so as to be movable in a direction perpendicular to the axis of the shaft. A gear, driven by a motor, is mounted on the slide baseplate in such a position that the gear can be engaged with the driven wheel when the slide baseplate is pushed in the proper direction. By providing engaging force between the driven wheel and the gear, backlash is suppressed, and positioning can be achieved at higher accuracy.

Abstract: A base support for a moveable antenna employing a stepping motor and stepping motor controller to move the antenna in fine increments. The base support is attached to an upstanding mounting member. An antenna is attached to a first support structure connected to a base member. The support structure is operatively connected to a worm gear assembly and motor driven worm gear disposed between the base member and the support structure to effect movement of the antenna about a predetermined axis. The worm gear is driven by a stepping motor. The stepping motor is controlled by a stepping motor controller to control incremental movement of the antenna. A second worm gear assembly can be interposed transversly between the first support structure and a second support structure to effect movements of the antenna about a horizontal axis. A second stepping motor and second stepping motor controller are used to drive the second worm gear and effect incremental movement of the antenna about the horizontal axis.

Abstract: An automotive final drive assembly which utilizes a worm gear system for speed reduction between a vehicle's engine and drive wheels. The final drive assembly is capable of reducing the high speed from the engine and delivering it to the vehicle's drive wheels, all within an extremely compact space. Furthermore, the large contact area between the thread of the worm and the teeth of the worm gear provides for a high load capacity with relatively low friction, such that the final drive assembly is efficient and operates at lower temperatures. Finally, the worm gear is a ball worm gear having a spheroidal shape. As a result, the structure of the final drive assembly is simplified and suitably rigid to maintain the threads of the worm in mesh with the teeth of the worm gear.

Abstract: A universal window-actuator drive unit capable of use with either a cable pulley window-actuator or an arm-scissors type window-actuator. A worm shaft extends from a driving motor and is rotatably coupled to a worm gear. The worm gear is coupled in a rotational-slave relationship to a driving disk, and both the worm gear and the driving disk are rotatably supported on a gear housing shaft. At its end opposite the driving disk, the gear housing shaft includes an actuator shaft collar concentrically surrounding the gear housing shaft and having a grooved toothing about its inner circumference. This inner grooved toothing enables the window-actuator drive unit to be coupled to either a drive pinion of an arm-scissor type window actuator or a cable pulley of a cable pulley window actuator, each of which include couplings having an outer grooved toothing corresponding to the inner grooved toothing of the actuator shaft collar.

Abstract: A bearing having to be assembled onto a shaft with a worm by passing over the worm where the diameter of the bearing section is larger than the outside diameter of the worm can be produced in a manner which saves material if not only the worm, but also the bearing section is non-cuttingly formed by rolling the basic material. It is possible to grind the bearing section at the outside, if necessary, and in an advantageous way, so that it is true to size and cylindrical.

Abstract: A compact and quiet-operating motor vehicle window drive has the following features: a first drive element or worm gear drives an entraining element with tangential play; a toothed rim is provided in a gear drive housing, axially concentric with the entraining element; a detent pawl that can engage the toothed rim in a self-locking pivot position is mounted in the manner of a toggle lever in the entraining element; a friction ring, with a first disengagement cam in front of and a second detent pawl cam behind the detent pawl, is mounted frictionally and rotatably in the gear drive housing in such a way that when motor drive occurs in "raise" mode, the friction ring is moved by the entraining element by means of the detent pawl which contacts the first disengagement cam and when motor drive occurs in "lower" mode, the friction ring is moved directly by the first drive element (worm gear); and when the entraining element is driven from the output side in the "lowering" rotation direction, the detent pawl can be

Abstract: A miniature motor with worm reduction gear outputting the revolution of a miniature motor via a worm reduction gear consisting of a worm and a worm wheel, in which the tooth surface of the worm is roughened into a stain finish, and then subjected to a surface treatment to improve wear resistance.

Abstract: A torque transmission unit comprises a worm wheel engaged with a worm of an armature of a motor, a gear casing housing therein the worm wheel, and an output disk operationally engaged at one end face thereof with the worm wheel through a damper. The output disk is provided on the one end face thereof with a hollow projection integrated with the output disk. The projection extends through an opening of the gear casing, from which a torque of the motor is taken out.

Abstract: A driving force transmission device includes a worm meshing with a worm wheel. The worm has an outer casing defining a first helical groove on the outer peripheral surface thereof, and an inner cylinder mounted in the outer casing and provided on the outer peripheral surface thereof with a helical groove. The outer casing has ball transfer holes at both ends of the first groove and which transfer holes communicate with the helical groove in the inner cylinder. A plurality of balls are rollably and loosely fitted in the helical groove in the outer periphery of the inner cylinder, the first groove in the outer periphery of the outer casing and the second groove in the outer periphery of the worm wheel. The balls circulate between the helical groove in the outer periphery of the inner cylinder and the first helical groove in the outer periphery of the outer casing via the ball transfer holes. Frame rings mounted on the worm at both ends thereof prevent the balls from floating out of the first groove.

Abstract: A coarse/fine adjustment of a rotary body, comprising: a worm wheel fitted to a rotary shaft of a rotary body; a worm meshing with the worm wheel and having a first screw; a rotary driving shaft having a second screw engaging with the first screw and rotated by a manipulation member and a switching means for effecting a switchover to rotationally or rectilinearly move the worm engaging with the rotary driving shaft. The worm is biased by a biasing means to mesh with the worm wheel while keeping a thrust state.

Abstract: A quieted motorized servoactuator with a sub-fractional horsepower high rpm, low voltage motor driving a gear train with about 900:1 reduction overall. The motor shaft has a metal worm meshing with a first stage thermoplastic elastomeric material, preferably polyamide polyester, of a hardness not greater than 72 on the Shore "D" scale. The first stage gear has an integral pinion meshed with a second stage gear of harder thermoplastic material, preferably acetal. The second stage gear has an integral pinion meshed with an output sector gear formed of harder thermoplastic material preferably comprising polyamide filled one-third by volume with fine glass particles.

Abstract: A gardening utility machine having a counter-rotation twin shaft system can perform multiple types of work required for gardening (tilling, soil removal, weeding, raking and shredding of leaves), snow/ice removal and for power de-thatching and mowing of lawn grass. This can be done by exchanging attachments on the counter-rotating twin shafts: if tines are installed on the twin shafts, soil tilling, weeding can be done; if auger blades with or without digging bits are in place instead, the machine can simultaneously till and remove soil or can remove ice/snow, or rake and shred leaves; if the front shaft is installed with a spiked roller and the rear shaft, a shearing reel, then the machine can power de-thatch and mow grass at the same time, and additional grass clipping mulching ability can be performed if a fan blower equipped with a mulching fan blade and a retractable bedknife is in place.

Abstract: A mechanism used to control the vertical height as well as fore-aft position of a vehicle seat while presenting a minimum height profile when adjusted to minimum vertical elevation. The seat is connected to a pair of rails, one stationary and one reciprocable. A seat is affixed to an attachment bracket which is connected to the reciprocable rail by a vertical height adjuster comprising a vertically oriented screw jack which may be positioned to selectable heights by a motor. The fore-aft relationship of the rails may also be selectively adjusted by a motor driving a horizontally oriented screw jack. Both screw jacks incorporate a screw connected to a helical gear engaged to a worm gear. The worm gear is driven by a remote motor through a flexible drive cable. Both screw jacks present a structure which offers a minimum height profile when the seat is positioned at minimum vertical height.

Abstract: A velocity-reduced drive system (1) is used to operate a movable member of a video camera or a combined camera-and-VTR unit at a reduced velocity. The drive system comprises a micro or flat motor (5) supported in cases (2), (3) and (4), a worm gear (6) rotatably supported by the cases, a worm wheel meshed with the worm gear, first power transmission means (11), (12) and (12) for transmitting rotational force of the motor (5) to the worm gear (6), and second power transmission means (14), (15) and (16) for transmitting rotational force of the worm gear (6) to an output shaft (7) to be coupled to the movable member.

Abstract: A bearing device for use with of a motor, includes a worm-like thread, which is threaded to a rotor shaft, and which engages a worm wheel. The rotor shaft is supported by a pair of radial bearings. When the rotor shaft is not caused to bend, a third radial bearing is spaced away from the outer peripheral surface of the rotor shaft. When the rotor shaft is caused to bend under the counter force generated by the worm wheel, the rotor shaft is supported by the third radial bearing along the bend direction.

Abstract: To simplify the design and assembly of an adjustment drive with a gear wheel mounted to rotate in a gear housing with a gear housing lid and with a driver provided with a power take-off element (e.g., a pinion) being in a drive connection with it on the output side, directly or indirectly, present invention provides that the driver is simultaneously structured as a power take-off shaft and is mounted to rotate with at least one bearing region in the gear housing or in the gear housing lid, respectively. In a further embodiment, the gear wheel is a one-piece component of the driver and is preferably placed into a drive connection with it via spring web type spokes in the form of tangential stop damping.

Abstract: The invention relates to a drive device for a vehicle rearview mirror, the positioning of which is achieved by means of a worm gear mounted by means of a coupling part in a single bearing, which is provided with an annular collar that engages in an upper annular slot of the coupling part. The intention is to improve the retaining force of the bearing.

Abstract: A two-piece, die cast transmission housing for a rototiller. The housing comprises two sections that are bolted together along their peripheral edges. A preformed gasket is seated within a recess in one section to form a tight seal between the two peripheral edges when the sections are secured together. The two-section design allows for easier maintenance, repair and replacement of transmission components without damaging bearings or seals. The two-section design also eliminates the need for alignment holes, potential sources of leaks, because the alignment can occur before the primary components are enclosed inside the housing. The housing sections include plural intersecting ribs which reinforce the housing and effectively dissipate heat.

Abstract: An improved fluid-strainer is provided which makes provision for improved methods of converting the same between motorized and manual modes. Included in the fluid strainer is a gear motor housing for facilitating the conversion as well as inspection and removal means. Also provision is made for flushing of the fluid strainer so as to avoid cycle restart.