Class / Patent application number | Description | Number of patent applications / Date published |
074409000 | Backlash take-up | 86 |
20090049941 | Damping motor and control approach for mitigating torsional backlash, damping critical geartrain speeds, and providing improved torque control in mechanical gears - A torque damper motor connected to the output side of a mechanical gear system. The damper motor, along with its associated control system, mitigates backlash problems, reduced torsional resonance, and provides improved output torque control. In the preferred embodiment, the damper motor is powered by a power electronics—based variable speed drive. The damper motor can be significantly less powerful than the overall rating of the gear system (typically 5-10% of the overall rating) while still providing the enhanced performance. | 02-26-2009 |
20090095103 | Two-part gearwheel - In a two-part gear wheel, including a first spur gear ring which is connected to a hub and a second spur gear ring which is rotatable relative to the first spur gear ring, annular spring elements are provided biasing the spur gear rings in opposite rotational directions. The ends of the two annular spring elements are in engagement with the spur gear ring and the hub at locations spaced circumferentially by about 180° so that the spring forces effective on the second spur gear ring compensate each other circumferentially. | 04-16-2009 |
20090095104 | Device For An Industrial Robot - A device for adjusting the backlash in bevel gears in an industrial robot which includes a first conical gear wheel with a first axis of rotation and a second conical gear wheel. The device includes a displaceably arranged holder member adapted to fix and rotatably journal the first gear wheel for rotation about the first axis of rotation. | 04-16-2009 |
20090241709 | DEVICE FOR REDUCING RATTLING NOISES IN VARIABLE-SPEED TRANSMISSIONS - A device for reducing rattling noises in a variable-speed transmission having a main shaft, two countershafts and gearwheels that are mounted, with some radial play relative to the main shaft, for rotation around the main shaft. To engage a gear, a respective loose gearwheel can be connected in a rotationally fixed manner to the main shaft. In a first embodiment, at least one loose gearwheel is mounted on the main shaft by at least one roller bearing, and the roller bearing is axially fixed relative to the main shaft by at least one flexibly resilient element. In a second embodiment, the loose gearwheel is supported, by a roller bearing on a component that is fixed to the housing and has radial play. The roller bearing is axially fixed relative to the component fixed to the housing by at least one flexibly resilient element. | 10-01-2009 |
20090249909 | SPEED REDUCER AND ELECTRIC POWER STEERING APPARATUS HAVING THE SAME - A speed reducer is provided. The speed reducer includes a worm shaft which is elastically preloaded in a meshing direction, a worm wheel, a biasing member having a fitting portion which is fitted on an axial end portion of the worm shaft arranged inside a housing, and a holder which supports the biasing member with a spring such that the basing member is movable in the meshing direction of the worm shaft and the worm wheel. The worm shaft is supported inside the housing via a bearing which is arranged in series with the holder in an axial direction, and the holder and the bearing are biased in the axial direction by an elastic member and are positioned on a stepped portion formed on an interior of the housing. | 10-08-2009 |
20090314114 | Backlash elimination mechanism for gear systems for low speed applications - A zero backlash mechanism for a worm, spur or helical gears, using a spring loaded mechanism that tightens the meshing gear surfaces, thus eliminating the backlash between them. | 12-24-2009 |
20090320630 | Linear drive, in particular a rack and pinion drive - The invention relates to a linear drive, in particular a rack and pinion drive, comprising at least one motor element ( | 12-31-2009 |
20100000355 | Output power transmission device and motor with speed reducing mechanism - An output power transmission device has a transmission plate and a C-ring. The transmission plate is attached to a wheel gear in an axial direction of the wheel gear such that the transmission plate directly engages with the wheel gear in a rotation direction. The transmission plate functions as a transmission member for transmitting rotation of the wheel gear to an output shaft. The C-ring is provided at a position where the C-ring sandwiches the transmission plate with the wheel gear in the axial direction. The C-ring functions as a restriction section for restricting movement of the transmission plate in the axial direction opposite from the wheel gear side. An elastic claw section as a pressing member is formed on the wheel gear. The elastic claw section presses the transmission plate against the C-ring in the axial direction. | 01-07-2010 |
20100043578 | BACKLASH-COMPENSATING TOOTHED MOVING PART, GEAR ASSEMBLY AND USE OF THIS GEAR ASSEMBLY - The invention relates to a backlash-compensating toothed moving part, for a precision gear assembly, particularly in clock-making, in which the backlash-compensating teeth each have a section extending symmetrically to both sides of the radius of said mobile passing the tip of said teeth with an elastic connection to said mobile to give said teeth a freedom of movement in the plane of the mobile, at least one tooth in two being a backlash-compensating tooth comprising stop means arranged to limit the freedom of movement as a function of the backlash in the gear assembly to be compensated for. | 02-25-2010 |
20100050799 | GEAR FOR ELIMINATING BACKLASH - Disclosed herein is a gear for eliminating backlash. The gear includes a rotating shaft having a hollow portion. A first gear is connected to an end of the rotating shaft to be rotated in sync with the rotating shaft, and has on a central portion thereof a connecting protrusion which protrudes forwards. A hole is formed so as to communicate with the hollow portion of the rotating shaft, and a pair of first mounting holes is formed in the first gear along an arc thereof. A second gear is rotatably connected to the connecting protrusion of the first gear and has the same teeth as teeth of the first gear. A cylinder is provided in each of the first mounting holes and connected at both ends thereof to the first gear and the second gear, thus rotating the second gear in one direction. A locking cap is provided on an end of the connecting protrusion of the first gear to prevent the second gear from being eliminated from the first gear. | 03-04-2010 |
20100064833 | BACKLASH ELIMINATOR - A backlash eliminator capable of eliminating backlash with a low loss while decreasing a backlash eliminating force to curtail friction and heat generation is provided. The backlash eliminator comprises an input shaft ( | 03-18-2010 |
20100077880 | DRIVE TRANSMISSION DEVICE AND IMAGE FORMING APPARATUS INCLUDING THE SAME - A drive transmission device includes a motor pinion gear provided at an output shaft of the driving motor and a-transmission gear engaging the motor pinion gear. In the drive transmission device, a sliding washer and a compression spring are disposed between the transmission-gear and the motor mounting plate. The sliding washer is pressed against a web of the transmission gear by the compression spring. | 04-01-2010 |
20100122595 | RACK BAR SUPPORTING DEVICE OF STEERING APPARATUS FOR VEHICLE - Disclosed is a rack bar supporting device of a steering apparatus for a vehicle which can prevent rattle noise generated due to clearance increase caused by the wearing of a rack bar and a support yoke in an endurance driving of a vehicle and maintain a uniform clearance between the rack bar and the support yoke after an endurance driving, thereby transferring stable steering force. | 05-20-2010 |
20100139431 | SCISSORS GEAR - A scissors gear may include a main gear and a sub-gear co-axially combined by a scissors spring therebetween to integrally rotate, a first oil supply hole formed in the main gear or the sub-gear to supply oil from the outside, an oil groove formed in the sub-gear or the main gear to receive the oil by being selectively communicated with the first oil supply hole, and a check valve that is disposed in the main gear or the sub-gear to open/close the oil groove. | 06-10-2010 |
20100154574 | AXIAL BACKLASH-ADJUSTED TRANSMISSION ELEMENT - The invention relates to a transmission drive unit which comprises a shaft ( | 06-24-2010 |
20100229666 | SHEAVE AND GEAR MECHANISM - A gear mechanism includes a first gear mounted on a first shaft in meshing arrangement with a second gear mounted on a second shaft. A fixed sheave is mounted on the first shaft. A first sliding sheave and a second sliding sheave are mounted on the second shaft. The first sliding sheave and the second sliding sheave are in contact with the fixed sheave. | 09-16-2010 |
20100242649 | SPLIT GEAR FOR AVOIDING BACKLASH WHEN ENGAGING A MATING GEAR - Split gear ( | 09-30-2010 |
20100269615 | CONNECTING APPARATUSES - A connecting apparatus of the present invention includes an inner teeth member with inner teeth, a guide member with a rotation support portion rotatably supporting an outer peripheral surface of the inner teeth member, a first and second teeth member movably mounted on the guide member, and a switching member capable of switching a lock state and an unlock state by moving the first and second outer teeth members. Further the connecting apparatus includes a backlash preventing mechanism capable of preventing a backlash of the inner teeth member with respect to the guide member by the switching member pushing the inner teeth member ( | 10-28-2010 |
20100275709 | METHOD OF PROVIDING A PREDETERMINED BACKLASH FOR A TRANSMISSION, A FIRST TOOTHED GEAR AND A METHOD FOR APPLYING A SHEET OF SPACER MATERIAL TO AT LEAST PART OF AN UPRIGHT SIDEWALL OF A FIRST TOOTHED GEAR - A method of providing a predetermined backlash ( | 11-04-2010 |
20100326223 | RATTLE-FREE COMPONENT PAIRING - A component pairing comprises a first component with a first component toothing and comprises a second component with a second component toothing which is in engagement with the first component toothing in order to be able to transmit a drive force in a drive direction via the component toothings. The first component is also assigned a first anti-rattle toothing. An anti-rattle component is fastened to the second component, which anti-rattle component has a second anti-rattle toothing which is in engagement with the first anti-rattle toothing. The anti-rattle component is mounted so as to be displaceable relative to the second component in the drive direction. The second component and the anti-rattle component are assigned in each case one friction section. The friction sections are in frictional engagement with one another. | 12-30-2010 |
20110000329 | ZERO BACKLASH PRELOAD GEARS - Described in this application is a zero-backlash preload gear assembly. The assembly is specifically described for use with a positioning system in order to significantly reduce or eliminate mechanical error and improve tolerances. Furthermore, the assembly allows for infinite positioning of a work surface in order to facilitate improved efficiency of an automated system. | 01-06-2011 |
20110017002 | ENGINE TAPERED GEAR ASSEMBLY - An engine gear drive assembly may include first and second taper gears and a biasing member. The first taper gear may be rotationally and axially fixed to the first rotary engine component. The second taper gear may be rotationally fixed to the second rotary engine component and axially displaceable relative to the second rotary engine component. The biasing member may bias the second taper gear in a first axial direction into engagement with the first taper gear. | 01-27-2011 |
20110030489 | ENGINE SCISSOR GEAR ASSEMBLY - A scissor gear assembly may include first and second gears, a friction plate, and a biasing member. The first gear may have a first number (n) of gear teeth extending from a perimeter thereof. The second gear may have a second number (m) of gear teeth extending from a perimeter thereof and may be concentrically mounted relative to the first gear and rotatable relative to the first gear. The second number (m) of gear teeth may be greater than the first number (n) of gear teeth. The friction plate may be rotationally fixed relative to the first gear. The biasing member may have a first end axially fixed relative to the first gear and a second end axially biasing the second gear and the friction plate into engagement with one another. | 02-10-2011 |
20110120245 | ROBOT ARM ASSEMBLY - A robot arm assembly includes a first rotation shaft rotatable about a first axis, a second rotation shaft rotatable about a second axis and rotatably connected to the first rotation shaft, a pair of bevel gears coupled to the second rotation shaft for transmitting a rotary motion to the second rotation shaft, an adjusting member for adjusting the position of the first bevel gear along the second axis, and an elastic member. The pair of bevel gears includes a first bevel gear and a second bevel gear engaging with the first bevel gear. The elastic member is positioned between the distal end and the first bevel gear, and resiliently biases the first bevel gear away from the second bevel gear. | 05-26-2011 |
20110120246 | TRANSMISSION DEVICE - A transmission device includes a gear case, a first gear, a second gear and a backlash adjusting mechanism. The first gear, the second gear and a backlash adjusting mechanism are received in the gear case. The first gear includes a shaft. The second gear is meshed with the first gear. Both of the first gear and the second gear are bevel gears. The backlash adjusting mechanism includes a resilient member and fastening member. The fastening member passes through the gear case. The resilient member resists the fastening member and an end of the shaft of the first gear, respectively. An elastic variation of the resilient member is changed or adjusted by the fastening member, such that a backlash between the first gear and the second gear is adjusted via the resilient member. | 05-26-2011 |
20110138945 | WIND TURBINE GENERATOR, AND METHOD OF CONTROLLING THE SIND TURBINE GENERATOR - To enhance durability of a gear transmission mechanism by eliminating play in a gear engagement due to the backlash between the gears (gear clearance) of the gear transmission mechanism in a variable pitch mechanism of blades or a nacelle turning mechanism and further to reduce damages to a gear tooth surface caused by slide of the tooth surface or impact thereon due to slight vibration, the gear transmission mechanism is constructed such that a first pinion gear | 06-16-2011 |
20110247441 | SPINDLE DRIVE - The present invention relates to a spindle drive. | 10-13-2011 |
20110265591 | OFF-CENTRED PUSHER DEVICE FOR STEERING AN AUTOMOBILE - The invention relates to a pusher device ( | 11-03-2011 |
20110277573 | Method of Compensating Gear Carrier Bearing Misalignment under Load - A method of compensating for load-induced twisting of a gear assembly under load that includes a gear on a gear shaft, bearings on each side of the gear that support the gear shaft and a carrier fastened to a stationary support surface that mounts a proximal one of the bearings near the stationary support surface and mounts a distal one of the bearings away from the stationary support surface. The method includes the steps of determining the twisting deflection of a distal bearing axis of rotation for the distal bearing relative to a proximal bearing axis of rotation for the proximal bearing and offsetting the position of the distal bearing axis of rotation relative to the proximal bearing axis of rotation in the carrier opposite the determined deflection under no gear loading. | 11-17-2011 |
20110303034 | ECCENTRIC PUSH MEMBER DEVICE FOR MOTOR VEHICLE RACK-AND-PINION STEERING ASSEMBLY - The push member device ( | 12-15-2011 |
20120024094 | ZERO BACKLASH GEARING - Each generic gear includes one tooth disposed in each of the sockets, and each tooth extends radially outward from one of the sockets and throat thereof. The teeth of the generic gear include resilient material adjacent the throat for compressing and allowing movement of each tooth relative to the outer periphery. In the species of FIG. | 02-02-2012 |
20120067147 | BEVEL GEARING DEVICE FOR STIRRING RACK OF TINTING MACHINE - A bevel gearing device for stirring rack of a tinting machine, including a gear bracket fixedly mounted on the stirring rack; a horizontal drive shaft rotationally mounted on the gear bracket; a first bevel gear fixedly mounted on the horizontal drive shaft adjacent to a side of gear bracket; a vertical rotational shaft with a second bevel gear fixedly mounted on its upper end and a stirring paddle mounted on its lower end, said stirring paddle is placed in a paint bucket; wherein an open guide slot is provided at the bottom of the gear bracket, the guide slot includes a first segment extending perpendicular to the horizontal drive shaft and a second segment extending towards the first bevel gear, an angle between the first and second segment is 180°≧α≧160°. | 03-22-2012 |
20120073395 | ANTI-BACKLASH GEAR AND TRANSMISSION MECHANISM USING THE SAME - A gear includes an outer ring, an inner ring, gear teeth, and elastic members engaged with the gear teeth. The outer ring defines a number of first fixing holes. The inner ring and the outer ring are concentric, and the inner ring defines a number of second fixing holes respectively corresponding to the first fixing holes, and each pair of first and second fixings hole align with the center of the rings, and define an axis of movement for spring loaded gear teeth. | 03-29-2012 |
20120160046 | DRIVE TRAIN HAVING CLUTCH ACTIVATION FOR OVERCOMING THE BACKLASH OF THE DRIVE TRAIN BEFORE START-UP - A drive train for a motor vehicle, including a drive unit having a drive shaft and a transmission having a transmission input shaft and a plurality of gears, of which at least one is used as a starting gear for the motor vehicle, and having a friction clutch, which is arranged between the crankshaft and the transmission input shaft and is actuated in an automated manner. In order to prevent start-up noise caused by backlashes in the motor vehicle, a backlash present in the transmission is compensated by applying a small compensating torque set at the friction clutch to the transmission input shaft while the starting gear is engaged before start up. | 06-28-2012 |
20120192666 | MOVEMENT MECHANISM AND SOLAR PLANT USING SAID MECHANISM - A movement mechanism for moving an interception element of a solar plant. The mechanism is mounted on a support frame and is constrained to the interception element to allow the movement thereof with respect to the support frame. The mechanism comprises a drive member which generates a motion, and a transmission kinematism which transmits the motion to a rotation shaft constrained to the interception element. The transmission kinematism comprises a first mechanical member with gears mounted rotatable on a first support and mechanically connected to the drive member, and a second mechanical member with gears engaged on the first mechanical member, mounted on a second support, and keyed to the rotation shaft. The first and the second support are pivoted to each other with respect to a determinate pivoting axis, in order to rotate around the pivoting axis, so as to bring together/distance the first and the second mechanical member. | 08-02-2012 |
20120266706 | Compliant Gear Assembly, Engine And Gear Train Operating Method - A compliant gear assembly for a gear train of an internal combustion engine includes a hub subassembly having a first hub component and a second hub component. The first hub component defines a first axis, and the compliant gear assembly includes a gear ring rotatable relative to the hub subassembly and defining a gear ring axis of rotation. The second hub component is movable relative to the first hub component between a first stop position and a second stop position. A compliance mechanism is coupled between the first hub component and the second hub component and biases the second hub component toward the first stop position. Translating the second hub component relative to the first hub component in a direction normal to the first axis attenuates torque spikes induced for example via fuel injector actuation and/or cylinder firing in an engine gear train employing the compliant gear assembly. | 10-25-2012 |
20120266707 | PUSH DEVICE WITH CLEARANCE COMPENSATION FOR RACK-AND-PINION STEERING OF A MOTOR VEHICLE - The invention relates to a push device ( | 10-25-2012 |
20120291576 | BACKLASH-COMPENSATING MOBILE - A backlash-compensating mobile ( | 11-22-2012 |
20120312114 | DUAL-MOTOR SERIES ELASTIC ACTUATOR - Certain embodiments of a system for reducing backlash include a member geared for rotation in first and second directions. In various implementations, a first motor causes rotation in the first direction with an output biased to preclude space between mating gear components in the first direction, and a second motor, which is mechanically independent of the first motor, causes rotation in the second direction with an output biased to preclude space between mating gear components in the second direction. | 12-13-2012 |
20120318085 | RACK BAR SUPPORTING DEVICE FOR VEHICLE STEERING APPARATUS - The present invention relates to a rack bar supporting device for a vehicle steering apparatus. According to the present invention, it is possible to compensate for a clearance even when the yoke is worn after the durability of a vehicle is lost to a certain degree. Consequently, it is possible to prevent a noise caused by an impact reversely input from an uneven road surface due to the increase of the clearance and to provide a driver with a pleasant steering feeling. In addition, since it is possible to assemble a rack bar supporting device, which includes several components, to a gear box, in a state where the components are integrally coupled to each other, it is possible to reduce difficulty in assembling and the length of time for assembling, and to prevent the loss of the components. | 12-20-2012 |
20120318086 | RACK BAR SUPPORTING DEVICE OF VEHICLE STEERING APPARATUS - The present invention relates to a rack bar supporting device for a vehicle steering apparatus. According to the present invention, a clearance between the rack bar and a support yoke can be kept always constant when the vehicle steering apparatus is operated, which makes it possible to reduce operational friction and noise, to maintain the supporting force of the support yoke and the rack bar to be constant for a long time, and to improve a steering feeling of a driver. | 12-20-2012 |
20130025391 | Gear Backlash Compensation In A Printing Device - Example embodiments disclosed herein relate to gear backlash compensation in a printing device. This gear backlash compensation occurs in a gear train assembly utilized to drive and position a service station of the printing device. The gear train assembly is driven by a media advance and positioning subsystem of the printing device. | 01-31-2013 |
20130055837 | INSTRUMENTAL UNIT - An instrumental unit includes: a step motor; a gear including: a gear body rotated by torque of the step motor, the gear body including a first surface formed with a recess and a second surface opposite to the first surface; and a rotary shaft projecting from the first and second surfaces; a controlling spring accommodated in the recess, a center of the controlling spring through which the rotary shaft projects, the controlling spring having lengths in long and short axis directions orthogonal to each other and having a line-symmetric shape with respect to each of the long and short axis directions; and a case accommodating the step motor, the gear body and the controlling spring, an inner surface of the case including: a first portion supporting the second surface; and a second portion pressing the controlling spring in the recess of the first surface. | 03-07-2013 |
20130074624 | GEAR TRANSMISSION DEVICE WITH RESILIENT CONNECTION BETWEEN DRIVING GEAR AND DRIVING SHAFT - An exemplary gear transmission device includes a driving assembly including a driving shaft, a shaft coupling, a circular driving gear, a resilient mechanism and a driven gear engaging with the driving gear. The shaft coupling is fixed to the driving shaft and rotatable in unison with rotation of the driving shaft. The circular driving gear substantially surrounds and is operatively coupled to the shaft coupling and rotatable under urging of the shaft coupling. The resilient mechanism is held between the driving gear and the shaft coupling and is elastically deformable in circumferential directions of the shaft coupling. When the driving gear moves axially and collides with the driven gear without meshing with the driven gear, the driving gear rotates slightly relative to the shaft coupling thereby elastically deforming the resilient mechanism and the driving gear reaches a position where it can mesh with the driven gear. | 03-28-2013 |
20130081493 | METHOD OF REDUCING THE EFFECT OF PREHEAT TIME VARIATION DURING SHAPE MEMORY ALLOY ACTUATION - A system for and method of reducing the effects of preheat period variation in shape memory alloy actuation, include sensing the removal of motion delay due to slack, backlash, and/or compliance in the actuator and drive-train of the system, and determining actuator activation, as a result thereof. | 04-04-2013 |
20130133452 | GEAR BACKLASH ADJUSTING MECHANISM AND ROBOT ARM ASSEMBLY HAVING THE SAME - A gear backlash adjusting mechanism includes a base, a first gear, a first elastic gear meshing with the first gear, a bearing sleeved on the first gear, and a bearing box over the bearing, and mounted on the base. The first elastic gear includes an outer ring, an inner ring, and an elastic member mounted between the outer ring and the inner ring. The position of the bearing box relative to the base can be adjusted, to push the first elastic gear via the first gear. The elastic member is deformed and provides elastic force to push the first elastic gear to tightly mesh with the first gear. | 05-30-2013 |
20130145875 | BACKLASH ELIMINATING DEVICE FOR HELICAL GEARS - A backlash eliminating device for helical gears is provided for a gear transmission system which includes a transmission shaft, two helical gears and a match gear. A sleeve mounted on the transmission shaft has an outer wall, an inner wall and at least two sections of spiral grooves penetrating through the outer wall and the inner wall. The sleeve includes a transmission part and two extremity parts. The transmission part is disposed between the spiral grooves, and is fixedly connected to the transmission shaft. The extremity parts are disposed outside of the spiral grooves. The helical gears are fixedly connected to the two extremity parts. The sleeve having the spiral grooves provides a preload spring force along an axial direction of the transmission shaft, so that the two helical gears are tightly engaged with the match gear. | 06-13-2013 |
20130160589 | TOOTHED WHEEL AND BACKLASH FREE GEAR TRAIN - The invention relates to a toothed wheel ( | 06-27-2013 |
20130199323 | ZERO BACKLASH GEAR STRUCTURE - A zero backlash gear structure, comprising: an engaging element, a compound gear set, an elastic element, and a fixing element. Wherein, the engaging element is provided with a plurality of engaging slots. The compound gear set includes a compound gear, a gear shaft, and a spline; wherein, the compound gear is provided with at least two gears, said plurality of gears can be engaged to a plurality of engaging slots. Said fixing element is sleeved onto said gear shaft, to press against said plurality of gears and said elastic element. When backlash occurs, said elastic element is used to make said plurality of gears on said compound gear set to get close to each other automatically, so that said fixing element and said compound gear set can move in synchronism, thus achieving zero backlash in both forward and reverse rotations. | 08-08-2013 |
20130291671 | WEAR COMPENSATION DEVICE FOR A GEAR SET WITH TEMPORARY ANGULAR PRE-INDEXING, AND ASSOCIATED MOUNTING METHOD - The wear compensation device for a gear set comprises a support for attaching the device to an external element, a bearing intended to be mounted on a shaft comprising one of the wheels of the gear set, an eccentric mounted on the bearing and able to move angularly with respect to the support, an actuator mounted axially between the support and the eccentric and able to apply a circumferential force to the said eccentric, and at least one maintaining means for temporarily maintaining the angular indexing of the eccentric relative to the support in an angular position in which the actuator is preloaded between the said eccentric and the said support. | 11-07-2013 |
20130305862 | Transmission with integrated PTO input gear damper - A power take-off unit (“PTO”) may include a damper to reduce noise while the PTO is operating at low torque or at low RPM. The damper may also be located in the transmission before the PTO driver gear. A method may be used to systematically measure the frequency and/or amplitude of the vibrations that cause noise and to adjust the damping constant of a damper to reduce the noise. | 11-21-2013 |
20130333504 | WHEEL WITH A FLEXIBLE TOOTHING - Timepiece wheel ( | 12-19-2013 |
20130340552 | BACKLASH TAKE-UP WHEEL - Backlash take-up timepiece wheel ( | 12-26-2013 |
20140000398 | Compliant Gear Assembly Having Variable Spring Force | 01-02-2014 |
20140053672 | ANTI-BACKLASH GEAR CONTROL DEVICE - An anti-backlash gear control device is disclosed that includes a first bias module operable to generate a first bias to be applied to a first motor operable with a first gear, and a second bias module operable to generate a second bias, opposite the first bias, to be applied to a second motor operable with a second gear. The first gear and the second gear are operably connected to a load gear, such that rotation of at least one of the first gear and the second gear causes the load gear to move. Additionally, a command module can receive a drive command and output at least one of first and second command signals based on the drive command to be summed with the first and second biases, respectively, to generate first and second drive signals to operate the first and second motors to drive the first and second gears, respectively. | 02-27-2014 |
20140083220 | INTERNAL COMBUSTION ENGINE AND BACKLASH ADJUSTING DEVICE OF CAM DRIVING GEAR MECHANISM - An internal combustion engine includes, among other things, a backlash adjusting device. An eccentric supporting shaft is disposed in an internal combustion engine so as to be able to be fixed at a predetermined rotational angle position about a central axis. The shaft adjusts an amount of clearance between a pair of gears, and is fitted over a base shaft fixed to the internal combustion engine such that the central axis of the eccentric supporting shaft coincides with an axis of the base shaft. An adjusting portion allows an inner circumference of the eccentric shaft to be fitted over an outer circumference of the base shaft at a predetermined rotational angle position. A fixing portion is configured to fix the eccentric supporting shaft to the base shaft. | 03-27-2014 |
20140123795 | PLATE CYLINDER DRIVE UNIT IN PRINTER - The present invention eliminates backlash between a drive helical gear and a driven helical gear and facilitates rotation of a driven gear member to increase rotational accuracy of a plate cylinder. A plate cylinder drive unit includes a plate cylinder drive shaft, a driven gear member having a driven helical gear that meshes with a drive helical gear and attached around the plate cylinder drive shaft, a position adjustment member moving the driven gear member to fix it at a predetermined position, a whirl-stop member attached to the plate cylinder drive shaft, a sandwiching member removably fixing the whirl-stop member to the driven gear member, a backlash eliminating helical gear disposed on one side of the driven helical gear, first springs bringing the backlash eliminating helical gear in pressure-contact with the driven helical gear, and second springs biasing the backlash eliminating helical gear to rotate it in a predetermined direction. | 05-08-2014 |
20140196557 | Anti-Backlash Gear - A stiff anti-backlash gear unit comprising two or more high ratio reducer assemblies provides an energy efficient, low backlash, speed reducer. The gear unit is assembled in such a way as to eliminate backlash without any preloading and may be configured as a conventional, planetary or star gear with co-axial, spaced, angled or multiple output shafts. | 07-17-2014 |
20140216190 | GEAR FOR A SPUR GEAR STAGE WITHOUT PLAY - A gear is described for a spur gear stage without play having a hub ( | 08-07-2014 |
20140245850 | SPLIT GEAR FOR AVOIDING BACKLASH WHEN ENGAGING A MATING GEAR - Split gear ( | 09-04-2014 |
20140245851 | METHOD OF PROVIDING A PREDETERMINED BACKLASH FOR A TRANSMISSION, A FIRST TOOTHED GEAR AND A METHOD FOR APPLYING A SHEET OF SPACER MATERIAL TO AT LEAST PART OF AN UPRIGHT SIDEWALL OF A FIRST TOOTHED GEAR - A method of providing a predetermined backlash ( | 09-04-2014 |
20140298938 | ADJUSTING DRIVE AND METHOD FOR PRODUCING AN ADJUSTING DRIVE - An adjusting drive, in particular for a steering column adjuster or a vehicle seat of a motor vehicle, and a method for producing an adjusting drive, are provided in which an axial play of the output shaft is reliably and permanently compensated. The compensating element for ensuring the axial-play-free arrangement of the output shaft is connected, in its operating position, to the housing by ultrasound welding. | 10-09-2014 |
20140352468 | REDUCER OF ELECTRIC POWER STEERING APPARATUS - Discloses is a reducer of an electric power steering apparatus. The reducer of the electric power steering apparatus can reduce the rattling noise caused by an increase of backlash due to friction and abrasion of a worm and a worm wheel or by an impact transferred through a wheel and a steering shaft from the road and allowing a pivotal movement of a worm shaft, while decreasing a rotation resistance and blockage of a worm shaft and a worm shaft bearing to increase steering feel of a driver. | 12-04-2014 |
20140360297 | BACKLASH ADJUSTING METHOD AND GEAR MECHANISM - A backlash adjusting method includes pressing an idler gear against a first gear and a second gear with a flexible film being held therebetween so that the idler gear is led to a meshing engagement position where the idler gear is meshing engageable with the first and second gears. The first and second gears are spaced away from each other. The method further includes removing the film after the idler has been led to the meshing engagement position. | 12-11-2014 |
20140366667 | METHOD OF BACKLASH COMPENSATION - A control method is provided for an electric motor which drives an apparatus through a gear unit. The method includes generating a gear output and input speed signals, low pass filtering the gear speed signals and subtracting the filtered gear input speed signal from the filtered gear output speed signal to provide a relative speed signal. The method also includes high pass filtering the relative speed signal, multiplying the filtered relative speed signal by damping gain value to generate a backlash compensation torque value, and subtracting the backlash compensation torque value from an apparatus control torque value to generate the desired motor torque value. | 12-18-2014 |
20150053030 | CLEARANCE COMPENSATOR OF YOKE - A clearance compensator for a yoke may include: a yoke body installed in a housing of a steering gear box so as to support a rack bar; an elastic member pressurizing the yoke body toward the rack bar; a pressurizing unit contacted with the elastic member so as to support the elastic member; and a yoke plug unit including a yoke plug fixed to the housing and a pressurization adjusting part adjusting the extent to which the pressurizing unit supports the elastic member, and inserted and coupled to the yoke plug. | 02-26-2015 |
20150053031 | SCISSOR GEAR WITH HYDRAULIC BACKLASH REMOVAL AND HYDRAULIC TORSIONAL DAMPING - A gear assembly can include a biasing apparatus, which can include a hydraulic biasing member. The biasing apparatus can be activated to urge a scissor gear tooth of a scissor gear toward a second gear tooth of a second gear. The urging of the scissor gear tooth toward the second gear tooth can close a backlash gap between a first gear tooth of a first gear and the second gear tooth of the second gear. | 02-26-2015 |
20150122064 | YOKE CLEARANCE COMPENSATOR OF VEHICLE - A yoke clearance compensator of a vehicle may include: a support yoke for supporting a rack bar; a yoke plug coupled to the support yoke through an elastic part and having a cavity formed therein; a pressurizing unit installed in the cavity of the yoke plug and providing a pressurizing force to the support yoke; and an end plug for fixing the pressurizing unit to the yoke plug. | 05-07-2015 |
20150291205 | RACK GUIDE FOR RACK AND PINION STEERING DEVICE, RACK AND PINION STEERING DEVICE AND MANUFACTURING METHOD OF RACK GUIDE FOR RACK AND PINION STEERING DEVICE - A rack guide for a rack and pinion steering device, a rack and pinion steering device and a manufacturing method for a rack guide for a rack and pinion steering device, has a simple configuration with a close contact property being kept between a rack guide and a rack guide base member to ensure quietness. A rack guide for a rack and pinion steering device includes: a casing; a pinion to be slidably supported by said casing; a rack bar having a rack tooth meshed with said pinion; a rack guide including an abutment portion to which said rack bar is to be slidably abutted and a recessed portion, which is continued to said abutment portion, to be spaced from said rack bar; a rack guide base member for receiving said rack guide; and urging means for urging said rack guide against said rack bar through said rack guide base member. | 10-15-2015 |
20150307122 | CLEARANCE COMPENSATOR OF YOKE - A yoke clearance compensator is disclosed. It includes a yoke body installed in a housing of a steering gear box to support a rack bar; an elastic member to press the yoke body toward the rack bar; a press portion contacted with the elastic member to support the elastic member; and a yoke plug portion fixed to the housing to adjust the strength of supporting the elastic member by the press portion. | 10-29-2015 |
20150316136 | METHOD FOR PRODUCING A BACKLASH-FREE TRANSMISSION STAGE - A method is disclosed for setting an angular displacement of a scissors gearwheel configured to mesh with another wheel in a backlash-free transmission stage. The method includes the steps of fixing the two gear rim parts of the gearwheel in a position corresponding to a desired angular displacement, moving the teeth of the gearwheel and the wheel into backlash-free meshed engagement, fixing the relative position between the gearwheel and the wheel, and cancelling the fixing of the two gear rim parts of the gearwheel. | 11-05-2015 |
20150337938 | HARMONIC OR STRAIN WAVE GEARING WITH WORM GEARING PRIMARY - A harmonic or strain wave gearing set coupled to a worm drive. By providing that a harmonic or strain wave gearing set is coupled to a worm drive, the benefit of being able to provide an input at an angle (such as a ninety-degree angle) to the output is realized along with the benefit of providing a harmonic or strain wave gearing set. Preferably, the worm drive is used as the primary, as the use of the worm drive as the primary uniquely changes the dynamics of the system, when compared to the opposite (i.e., using the harmonic or strain wave gearing as the primary). Harmonic or strain wave gearing provides a more flexible solution than a worm gear. In a system where the zero backlash is required, a split worm can be used as the input, and the harmonic or strain wave gearing would be the output member. Furthermore, a low ratio, efficient, worm gear can drive a high ratio harmonic or strain wave gearing set, thus providing a high ratio, highly efficient solution. | 11-26-2015 |
20160009315 | STEERING GEAR PAD | 01-14-2016 |
20160010740 | WORM SPEED REDUCER AND ELECTRIC POWER STEERING SYSTEM USING THE SAME | 01-14-2016 |
20160025209 | WORM BIASING STRUCTURE - A worm biasing structure that biases a worm toward a worm wheel in a biasing direction, includes: a radial bearing that supports the worm in a radial direction; a bearing holder that has a holder hole for accommodating the radial bearing; a biasing member for biasing the radial bearing toward the worm wheel; and a housing that has a housing hole for accommodating the bearing holder, a pair of guide surfaces is formed as defined herein, when the bearing holder is accommodated in the housing hole and the radial bearing is not accommodated in the bearing holder, a distance between the pair of guide surfaces is smaller than or equal to an outer diameter of the radial bearing, and a gap is formed between an outer surface on the outer side of the guide surface and the housing hole. | 01-28-2016 |
20160031474 | STEERING SUPPORT YOKE - A process of forming a support yoke can include providing a material; shaping the material to form a rough shape, wherein shaping is performed at a temperature less than a melting temperature of the material; and heat treating the rough shape. In an embodiment, heat treating can include solutionizing and ageing. In an embodiment, the process can include machining. In an embodiment, the support yoke can be used in a rack and pinion assembly. In an embodiment, the support yoke can be a steering yoke. | 02-04-2016 |
20160033030 | Split Gear Assembly With One-Way Roller Clutch For Controlling Backlash In Opposed-Piston Engines - Backlash is controlled in an opposed-piston engine that includes two crankshafts disposed in a parallel, spaced-apart relationship and a gear train coupling the first and second crankshafts, the gear train including a driving gear coupled to the first crankshaft and a split gear assembly engaged with the driving gear to transfer rotation from the driving gear to the split gear assembly. The split gear assembly includes first and second gears, a spring mechanism that acts to angularly offset the first gear relative to the second gear in a first direction, and a one-way clutch mechanism that prevents relative angular movement of the first gear relative to the second gear in a second direction opposite the first direction. | 02-04-2016 |
20160068147 | METHOD FOR DAMPING THE TORSION OF A SCREW DRIVE FOR AN ELECTROMECHANICAL BRAKE BOOSTER, SCREW DRIVE FOR AN ELECTROMECHANICAL BRAKE BOOSTER, AND ELECTROMECHANICAL BRAKE BOOSTER - A screw drive for an electromechanical brake booster of a braking system of a motor vehicle includes: a threaded nut; and a threaded spindle engaged with the threaded nut. The threaded nut includes an outer section which is connectable to a drive unit for driving the threaded nut, and an inner section having a thread for accommodating the threaded spindle. The inner section and the outer section of the threaded nut are connected by a damping unit for damping the torsion of the threaded nut. | 03-10-2016 |
20160084370 | METHOD OF PROVIDING A PREDETERMINED BACKLASH FOR A TRANSMISSION, A METHOD FOR APPLYING A SHEET OF SPACER MATERIAL TO AT LEAST PART OF AN UPRIGHT SIDEWALL OF A FIRST TOOTHED GEAR - A method of providing a predetermined backlash for a transmission comprising at least a first and a second interlocking toothed gear, the backlash being provided by positioning the first and second gear with respect to each other by means of spacer material applied to at least part of an upright sidewall of at least one first tooth, the upright sidewall facing a second tooth of the second gear adjacent to the first tooth, the layer of spacer material being pressed in between the first and the second tooth, the thickness of the layer of spacer material determining the predetermined backlash between the first and the second tooth. | 03-24-2016 |
20160097446 | Worm backlash adjustment device - A worm backlash adjustment device includes a drive unit, a backlash adjustment unit, and a control device. The drive unit includes a first motor device, a first drive member, a linking member, a passive member, and a second drive member. The first drive member and the linking member are coaxially driven by the first motor device. The passive member is coaxially connected with the second drive member and linked by the linking member to turn reversely. The two drive members are disposed at two sides of a driven member to drive the driven member, respectively. The backlash adjustment unit includes a second motor device, a screw member, and a backlash adjustment member. Through the screw member, the backlash adjustment member is driven by the second motor device to move linearly. The second drive member has a drive function and a backlash adjustment function. | 04-07-2016 |
20160138697 | GEAR ASSEMBLY - A gear assembly is provided. The gear assembly includes a first gear. The first gear defines at least one slot provided on a surface thereof. The gear assembly also includes a second gear. The second gear includes at least one tab extending axially from a surface of the second gear. The at least one tab is configured to engage at least partially within the at least one slot of the first gear. The gear assembly further includes a resilient material provided within the at least one slot and in contact with the at least one tab of the second gear. The resilient material is configured to provide a restoring force to bias the at least one tab toward an end of the at least one slot for controlling backlash during meshing of the gear assembly. | 05-19-2016 |
20160146327 | METHOD AND DEVICE FOR ADJUSTING THE PLAY OF A GEAR TRANSMISSION - A clearance adjustment mechanism ( | 05-26-2016 |
20160160997 | SHIMLESS GEAR TRANSMISSION - Electric motors are disclosed. The motors are preferably for use in an automated vehicle, although any one or more of a variety of motor uses are suitable. The motors include lift, turntable, and locomotion motors. | 06-09-2016 |
20160201760 | AUTOMOBILE REDUCER | 07-14-2016 |
20160377171 | MOTOR COUPLING DEVICE - A motor coupling device for connecting a drivetrain of a hybrid vehicle to a motor and transferring a driving torque of the motor to the drivetrain, the motor coupling device comprising: a coupling plate connected to a rotation shaft of the motor and engaging with a connecting plate of the drivetrain; and a first backlash compensation unit installed at one surface of the coupling plate, interfering with the connecting plate, and compensating for backlash when a motor reverse torque is generated. | 12-29-2016 |
20160377172 | DEVICE FOR POSITIONING MESHING TEETH OF A GEAR DRIVE WITHOUT ANY PLAY - The invention relates to a device ( | 12-29-2016 |