Adjustable Patents (Class 74/395)
  • Patent number: 9086137
    Abstract: 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.
    Type: Grant
    Filed: February 15, 2011
    Date of Patent: July 21, 2015
    Assignees: I. MER CO., LTD., Nippon National Seikan Company, Ltd.
    Inventor: Masayuki Izume
  • Publication number: 20150114153
    Abstract: A gear arrangement includes a first and a second gearwheel where the first and second gearwheels are arranged next to each other upon a first shaft such that the first and second gearwheels can rotate relative to the first shaft. At least one gearwheel of the first and second gearwheels wheels is arranged upon the first shaft such that it can be axially displaced between a distanced axial position and a contact axial position upon the first shaft, and whereby in the distanced axial position, the first and second gearwheels are distanced from each other and in the contact axial position, an axial contact between the first and second gearwheel is enabled.
    Type: Application
    Filed: June 25, 2012
    Publication date: April 30, 2015
    Applicant: VOLVO LASTVAGNAR AB
    Inventor: Anders Hedman
  • Patent number: 8813595
    Abstract: A method for adjusting the meshing position of a hypoid gear having a first gear, and a second gear meshing with the first gear and transmitting the rotary motion thereof in the direction different from the extending direction of the axis of rotation of the first gear.
    Type: Grant
    Filed: November 12, 2008
    Date of Patent: August 26, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Tsutomu Kawakatsu, Yasuo Takeuchi, Hideki Komaba, Yutaka Yoshiba, Norikazu Hashimoto
  • Patent number: 8671792
    Abstract: A multimode actuator for a document scanning apparatus is used to manipulate a book cradle along two degrees of freedom. The apparatus includes a drive shaft that is moveable along an axis to actuate the drive shaft in a first position and a second position. In the first position, the drive shaft engages with a spacing gear and disengages with a translation gear, wherein a rotation of the drive shaft while in the first position causes spacing between cradle halves to change. In the second position, the drive shaft engages the translation gear and disengages the spacing gear, wherein a rotation of the drive shaft while in the second position causes the lateral position of the document cradle to change while maintaining the spacing between the cradle halves.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: March 18, 2014
    Assignee: Google Inc.
    Inventor: Alexander T. Starns
  • Patent number: 8646351
    Abstract: An electric power-assisted steering system of a motor vehicle comprises a helical pinion which engages into a helical gear. A reloading device comprises a reloaded pressure piece which presses the helical pinion into the toothing of the helical gear. The requirements of assembly are reduced and the elastically urging of the helical pinion or the worm need not be adjusted during assembly since the necessary elastically urging is automatically adjusted such that friction in the gearing is minimized, improved efficiency is achieved and the spring force can be held as constant as possible throughout the service life and unwanted noise development in the gearing can be largely reduced.
    Type: Grant
    Filed: August 13, 2012
    Date of Patent: February 11, 2014
    Assignee: ZF Lenksysteme GmbH
    Inventors: Dennis Fuechsel, Ekkehard Kneer, Jens Hafermalz, Arne Kuhlen, Marco Grau
  • Patent number: 8567277
    Abstract: 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.
    Type: Grant
    Filed: August 18, 2010
    Date of Patent: October 29, 2013
    Assignees: Hong Fu Jin Precision Industry (ShenZhen) Co., Ltd., Hon Hai Precision Industry Co., Ltd.
    Inventor: Bo Long
  • Patent number: 8515308
    Abstract: A gear center-distance maintaining mechanism includes a first support body that rotatably supports a first gear to be rotated by driving force from a driving unit, a second support body that rotatably supports a second gear to be meshed with the first gear so as to transmit rotational force from the first gear to a rotating body, the second support body being movable relative to the first support body in a direction such that the second gear moves away from the first gear, an arc-shaped face provided in the second support body and centered on an axis of the second gear, and a restricting portion provided in the first support body and shaped like an arc centered on an axis of the first gear, the restricting portion restricting the movement of the second support body relative to the first support body by contact with the arc-shaped face.
    Type: Grant
    Filed: November 4, 2010
    Date of Patent: August 20, 2013
    Assignee: Fuji Xerox Co., Ltd.
    Inventor: Toyohiko Awano
  • Publication number: 20130192264
    Abstract: An example method of controlling performance of gearbox of a gas turbine engine includes establishing a gear characteristic of a plurality of double helical gears each disposed about a respective axis in a gearbox. Performance of the plurality of double helical gears is controlled by selecting a circumferential offset distance between a first plurality of gear teeth spaced apart from a second plurality of gear teeth on each of the plurality of double helical gears in response to the established gear characteristic.
    Type: Application
    Filed: April 3, 2012
    Publication date: August 1, 2013
    Inventors: Michael E. McCune, Ahmet Kahraman
  • Publication number: 20130152719
    Abstract: A pressure portion (1) includes a receiver (2) for adjustable lateral support of a rack (Z) for a steering arrangement of vehicles. The pressure portion (1) arranged in positionally variable relationship guided linearly in a guide passage (F) for adjustment of the support of the rack (Z) in an adjustment direction (e), and enlarged or expanded for at least partial contact at an inside wall side in the guide passage (F) with respect to a directional component (r2) which is radial relative to the adjustment direction (e). The pressure portion (1) has radially at an outside thereof an elastomeric force application aid (11) for transmission of forces from the pressure portion (1) to an inside wall (10) of the guide passage (F).
    Type: Application
    Filed: December 13, 2012
    Publication date: June 20, 2013
    Applicant: GAPI TECHNISCHE PRODUKTE GMBH
    Inventor: GAPI Technische Produkte GmbH
  • Publication number: 20130055836
    Abstract: An adjustable camshaft sprocket assembly includes a hub and a sprocket body secured to the hub. A stud-receiving opening is defined in one of the hub flange and the sprocket body, and a tool-receiving opening is defined in the other of the hub flange and the sprocket body. The tool-receiving opening is aligned with the stud-receiving opening and is adapted to receive a body portion of an adjustment tool, and the stud-receiving opening is adapted to receive an eccentric stud of the adjustment tool. Either the stud-receiving opening or the tool-receiving opening is elongated. Rotation of the adjustment tool when its body is located in the tool-receiving opening and its eccentric stud is located in the stud-receiving opening causes relative angular movement between the hub and the sprocket body. One or more fasteners are used to immovably secure the sprocket body to the hub after adjustment. A tool includes cylindrical base, a driving head, and an eccentric stud.
    Type: Application
    Filed: October 29, 2012
    Publication date: March 7, 2013
    Applicant: CLOYES GEAR AND PRODUCTS, INC.
    Inventor: CLOYES GEAR AND PRODUCTS, INC.
  • Patent number: 8234947
    Abstract: The invention relates to a transmission arrangement, particularly for adjusting devices in motor vehicles, comprising a gear wheel, which is secured against axial displacement on an axis or a shaft by means of securing element. According to the invention, the axis or the shaft is made of plastic. The securing elements comprise at least a molded part, which has at least one axial stop for the direct or indirect support of the gear wheel, and the molded part is secured by means of a screw against axial displacement on the axis or the shaft.
    Type: Grant
    Filed: August 14, 2007
    Date of Patent: August 7, 2012
    Assignee: Robert Bosch GmbH
    Inventors: Rainer Kurzmann, Klaus Oberle, Danny Werner Gottschalk, Manfred Winter
  • Patent number: 8206262
    Abstract: A differential gear for a wind power plant includes a gearbox with three inputs and outputs. One input is connected to the rotor of the wind power plant, the first output is connected to a generator and the second output is connected to the input shaft of a continuously variable gearbox, the output shaft of which is connected to the generator side output of the gearbox. The input shaft of the continuously variable gearbox is connected to the output shaft of the gearbox via a variable gearbox.
    Type: Grant
    Filed: November 5, 2007
    Date of Patent: June 26, 2012
    Assignee: AMSC Austria GmbH
    Inventor: Gerald Hehenberger
  • Publication number: 20110306457
    Abstract: In one example, a moon gear assembly is provided that includes a moon arm assembly having a driving moon gear. A pivot pin is connected to the moon arm assembly, and an adjustment arm is connected to the moon arm assembly.
    Type: Application
    Filed: July 13, 2011
    Publication date: December 15, 2011
    Applicant: VMT TECHNOLOGIES, LLC
    Inventors: Gary D. Lee, William M. Decker, Brian M. Olsen, Eric E. Aston, Brian T. Barnum, Steven R. Aposhian, Andrew J. Orme, Isaac R. Jones, Peter J. Jones, Regis A. David
  • Publication number: 20110297472
    Abstract: A device for pressing a steering rack onto a pinion engaged with the steering rack, in particular for a steering system of a motor vehicle, comprises a pressure piece which can be loaded in the direction of the steering rack and is displaceably guided in a housing and an adjustment unit for compensating for play occurring in the steering system. A spring washer is disposed between the adjustment unit and the pressure piece, wherein the adjustment unit comprises a projection and the pressure piece comprises a recess, or the pressure piece comprises a projection and the adjustment unit comprises a recess, in the region of the spring washer.
    Type: Application
    Filed: June 15, 2011
    Publication date: December 8, 2011
    Inventor: Helmut Bareis
  • Publication number: 20110253953
    Abstract: The present invention provides a rack and pinion mechanism which avoids collision between respective tooth tops of a rack gear and a pinion gear due to a phase shift between the rack gear and the pinion gear with a simple mechanism and meshes the rack gear and the pinion gear smoothly. The rack and pinion mechanism includes a rack gear 16 fixed to a stage 20 moving on a carrying track 7 while loading a carried object thereon and a plurality of pinion gears 17 connected to a drive source 13. At least two of the pinion gears are synchronized and rotate to mesh with the rack gear in sequence, whereby the rack gear is delivered from the pinion gear in the current process to the pinion gear in the subsequent process, so that the stage is carried.
    Type: Application
    Filed: December 9, 2009
    Publication date: October 20, 2011
    Applicant: CANON ANELVA CORPORATION
    Inventor: Yasutomo Tanaka
  • Publication number: 20110239797
    Abstract: A fine motion control rod drive mechanism handling apparatus attaches a fine motion control rod drive mechanism having a control rod drive mechanism body, a spool piece, a motor bracket and a motor unit to a reactor pressure vessel, and detaches it from the reactor pressure vessel. The fine motion control rod drive mechanism handling apparatus is provided with a bolt wrench assembly, a motor unit attachment mounted to the bolt wrench assembly, for meshing a first gear of a first gear coupling on a spool piece side with a second gear of a second gear coupling on a motor unit side, and a rotation mechanism mounted to the bolt wrench assembly, for rotating the motor unit attachment.
    Type: Application
    Filed: February 18, 2011
    Publication date: October 6, 2011
    Inventors: Hirokazu AKATSUKA, Toshihiro Kodama, Takeaki Suzuki
  • Publication number: 20110232401
    Abstract: In a device for transmitting a torque to a rotary kiln (13), including a drive shaft driven by a motor and having a drive pinion driving a gear rim connected to the rotary kiln, the drive pinion (5) drives the gear rim (12) via an interposed transmission (6), wherein a gear wheel (7) of the transmission (6) engages with the drive pinion (5) in a manner displaceable in the axial direction.
    Type: Application
    Filed: December 9, 2009
    Publication date: September 29, 2011
    Applicant: Holcim Technology Ltd.
    Inventors: René Burkhalter, Laurent Chichery
  • Publication number: 20110158711
    Abstract: A drive transmission system includes a shaft member storing grease in a shaft outer circumferential small diameter section. A drive transmission gear is provided including a gear inner circumferential sliding section and a gear inner circumferential large diameter section. A gear moving device is provided to move the drive transmission gear reciprocally along the shaft member in a shaft direction. A restriction device is provided to restrict a movement range of the drive transmission gear along the shaft member in the shaft direction to enable the gear inner circumferential large diameter section to face the shaft outer circumferential small diameter section substantially continuously.
    Type: Application
    Filed: December 21, 2010
    Publication date: June 30, 2011
    Applicant: Ricoh Company, Ltd.
    Inventor: Tatsuo Fukushima
  • Publication number: 20100263466
    Abstract: A method for adjusting the meshing position of a hypoid gear having a first gear, and a second gear meshing with the first gear and transmitting the rotary motion thereof in the direction different from the extending direction of the axis of rotation of the first gear.
    Type: Application
    Filed: November 12, 2008
    Publication date: October 21, 2010
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Tsutomu Kawakatsu, Yasuo Takeuchi, Hideki Komaba, Yutaka Yoshiba, Norikazu Hashimoto
  • Publication number: 20100107793
    Abstract: The invention relates to a transmission arrangement, particularly for adjusting devices in motor vehicles, comprising a gear wheel, which is secured against axial displacement on an axis or a shaft by means of securing element. According to the invention, the axis or the shaft is made of plastic. The securing elements comprise at least a molded part, which has at least one axial stop for the direct or indirect support of the gear wheel, and the molded part is secured by means of a screw against axial displacement on the axis or the shaft.
    Type: Application
    Filed: August 14, 2007
    Publication date: May 6, 2010
    Applicant: Robert Bosch GmbH
    Inventors: Rainer Kurzmann, Klaus Oberle, Danny Werner Gottschalk, Manfred Winter
  • Publication number: 20090049940
    Abstract: A drive power transfer apparatus is provided which has an elastic portion provided between a differential-lock switching shift folk and a stopper portion and a support portion provided between the differential-lock switching shift folk and the elastic portion. The stopper portion has a first contact portion that contacts the elastic portion and a second contact portion which protrudes toward the differential-lock switching shift folk more than the first contact portion does and which contacts the support portion. The differential-lock switching shift folk is set in position by the elastic portion contacting the first contact portion. The thickness of the elastic portion in the axial direction is larger than the distance between the first contact portion and the second contact portion in the axial direction. According to this structure, the switching mechanism of the drive power transfer apparatus can be operated without making any impact noise.
    Type: Application
    Filed: August 15, 2008
    Publication date: February 26, 2009
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventor: Koji TAKAIRA
  • Patent number: 7412909
    Abstract: The invention provides a non-stage transmission which shifts gear in response to a load without requiring any independent actuator for changing a change gear ratio, and can achieve a large change gear ratio on the basis of a small-sized and low-cost structure. The non-stage transmission is structured such that a rocker arm 4 is reciprocated via a connection rod 18, a means for changing a stroke of the reciprocating motion is provided, and an output shaft 2 is driven in one direction whichever of forward and backward directions of the reciprocating motion of the rocker arm 4. An input side turning body 13 is structured such as to drive an output side turning body 14 via an energizing spring 12. The stroke of the reciprocating motion is changed by rotating a crank shaft lever by a cam groove 13d in a clockwise direction in correspondence to an increase of a load so as to shorten a distance between points Q, S.
    Type: Grant
    Filed: July 28, 2004
    Date of Patent: August 19, 2008
    Inventor: Katsuya Kawakita
  • Patent number: 7395731
    Abstract: A continuously variable planetary gear set is described having a generally tubular idler, a plurality of balls distributed radially about the idler, each ball having a tiltable axis about which it rotates, a rotatable input disc positioned adjacent to the balls and in contact with each of the balls, a rotatable output disc positioned adjacent to the balls opposite the input disc and in contact with each of the balls such that each of the balls makes three-point contact with the input disc, the output disc and the idler, and a rotatable cage adapted to maintain the axial and radial position of each of the balls, wherein the axes of the balls are oriented by the axial position of the idler.
    Type: Grant
    Filed: August 7, 2007
    Date of Patent: July 8, 2008
    Assignee: Fallbrook Technologies Inc.
    Inventors: Donald C Miller, David J Allen, Robert A Smithson
  • Patent number: 7377257
    Abstract: In an adjusting device with a transmission, high gear ratios are frequently required. In the transmission, powerful lateral forces are frequently generated, which must be absorbed by correspondingly dimensioned bearings. The present invention proposes an adjusting device having a transmission in which at least one gear is supported on an axle with a diameter that varies in the longitudinal direction. This achieves a uniform material loading of the axle supporting the gear and permits the diameter of the axle as a whole to be significantly reduced. The adjusting device is particularly intended for motor vehicles with an internal combustion engine.
    Type: Grant
    Filed: September 6, 2006
    Date of Patent: May 27, 2008
    Assignee: Robert Bosch GmbH
    Inventors: Udo Utz, Ralf Kromer, Michael Knorpp
  • Patent number: 7275872
    Abstract: A bearing that can be reoriented to move its center is disclosed. The center of the bearing is offset from the center of its outer housing. Should the shaft extending through the bearing need to be raised or lowered the outer housing is simply rotated in its receptacle and its position is fixed. Reconfiguring the bearing receptacle or using shims is eliminated and the alignment process is rendered shorter and more reliable future operation is obtained.
    Type: Grant
    Filed: February 18, 2005
    Date of Patent: October 2, 2007
    Assignee: Cameron International Corporation
    Inventor: David J. Abrahamian
  • Patent number: 7228799
    Abstract: A moving member fixing apparatus includes a stationary gear, rotary gear, press member, and first and second flat inclined surfaces. The rotary gear is movably provided to the stationary gear. The press member presses the rotary gear to fix the rotary gear to the stationary gear, and cancels pressing the rotary gear so that the rotary gear is released from the stationary gear. The first flat inclined surface is formed to be associated with the stationary gear.
    Type: Grant
    Filed: September 10, 2004
    Date of Patent: June 12, 2007
    Assignee: Komori Corporation
    Inventors: Shigeru Maruyama, Takanobu Aoki
  • Patent number: 7225697
    Abstract: A power transmission arrangement includes a shaft, a first gear mounted on the shaft, a plate supported by the shaft and rotatable between a first position and a second position, a second gear supported by the plate and engaged with the first gear, and a third gear supported by the plate and movable between a disengaged position and an engaged position with the second gear when the plate is rotated between the first position and the second position.
    Type: Grant
    Filed: September 9, 2003
    Date of Patent: June 5, 2007
    Assignee: Hewlett-Packard Development Company, L.P.
    Inventors: Wesley R. Schalk, Allan G. Olson
  • Patent number: 7207232
    Abstract: A continuously variable transmission including a drive element rotatable about a drive axis, an output element rotatable about an output axis parallel to the drive axis, and an adjusting mechanism with which the drive axis and the output axis can be laterally offset from each other. Coupling elements operate between the drive element and the output element and are spaced from each other in the peripheral direction of the drive element and output element for transmitting torque between the elements. The coupling elements change the movement of a peripheral region of the drive element faster than that of the output element so that forces acting on the coupling elements from the drive element and the output element lie substantially in a common plane that extends perpendicularly to the axes of rotation. The continuously variable transmission can be incorporated into a transfer case for an all-wheel drive system.
    Type: Grant
    Filed: July 9, 2004
    Date of Patent: April 24, 2007
    Assignee: LuK Lamellen und Kupplungsbau Beteiligungs KG
    Inventor: Oswald Friedmann
  • Patent number: 7028572
    Abstract: A pitch transfer gear transmission which enables drive to be transmitted from a gear of having one modulus (42) to a gear having another modulus (46) includes at least two gears (12,16) which have a different number of teeth and which are able to rotate relative to one another, so that the teeth of the two gears (12,16) can form a gear modulus of a first value at one part of the periphery of the gear, and a gear modulus of another value at another part of the periphery of the gear. Continuously variable transmissions are formed by providing an input or output gear (42,46) which has a modulus which varies along the length of the gear. Pitch transfer gear assembly (30) engages with the input or output gear (42,46), and is moveable by a mechanism (59) along the length of the gear changing modulus, so as to set the drive ratio of the transmission.
    Type: Grant
    Filed: February 21, 2002
    Date of Patent: April 18, 2006
    Assignee: Aimbridge Pty Ltd.
    Inventors: Eric P Willmot, David Ellis
  • Patent number: 6810760
    Abstract: Methods and apparatus are provided for mating a first gear and a second gear, such as those utilized in drive mechanisms of mailing machine modules. A gear frame can mount a first gear on a first annular gear mount. A first end of a link can be pivotally mounted on a fulcrum and a second end can have a second gear mounted on a second annular gear mount. A normal force can be provided on the link in a direction opposing pivotal movement of the link. When the first gear and the second gear are brought together for mating, the link can pivot to allow the first gear and the second gear to mesh. The second annular gear mount can be guided into a channel in the gear frame to secure the second gear in a meshed position with the first gear.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: November 2, 2004
    Assignee: Pitney Bowes Inc.
    Inventors: Chiping Sye, David Privin, Steven A. Supron
  • Patent number: 6792823
    Abstract: A gear drive mechanism for downsizing office products, which can be easily disassembled, by thinning the gear drive mechanism. The gear drive mechanism drives a plurality of shafts cantilevered from a base plate attached within a label writer, wherein gears are fit on the shafts, and are engaged with each other, with specific shafts used as drive shafts. The gear drive mechanism comprises a groove formed around an end of at least one of the driven shafts other than the specific shafts, a ring-shaped washer having a slit in a direction of a diameter fit in the groove as a gear removal preventive and a recessed portion provided to a side surface of the gear throughout the washer.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: September 21, 2004
    Assignee: Brother Kogyo Kabushiki Kaisha
    Inventors: Toshihiro Takahashi, Kiyoshi Sugimoto
  • Patent number: 6722221
    Abstract: An adjustable cam shaft sprocket for allowing small adjustments to a cam shaft. The adjustable cam shaft sprocket comprises an inner member and an outer member, the inner member being placed concentrically within the first circular member and held in place by a fastener. A series of openings located at the perimeter of the inner member and outer member are arranged such that only one pair of openings between the inner member and the outer member are aligned for each hole alignment. A shear pin is inserted through the aligned pair of openings to prevent the inner member from rotating with respect to the outer member. A small adjustment to the cam shaft is achieved by removing the shear pin, rotating the inner member with respect to the outer member so that a second pair of openings is aligned, and re-inserting the shear pin.
    Type: Grant
    Filed: February 1, 2002
    Date of Patent: April 20, 2004
    Inventor: Steven Frank Maxwell
  • Publication number: 20040016313
    Abstract: The present invention relates to an improved electrical rolling door transmission including one door controller with one pair of transmission gears, two cams, one position cover and two adjustable shafts, all contained in the FixDisc, allowing the user to adjust manually and directly in the limited maintenance space, keeping the limiting position steady after adjustment, thus facilitates the maintenance. One positioning board is installed between the wheel and the driving motor for the user to dismantle the driving motor directly while eases maintenance and assemblage. Furthermore, several sockets on one side of the clutch disc of the FixDisc allow the inserting shaft to insert into any of these sockets for reposition, instead of waiting for reposition by revolving for a big circle, providing better reposition mechanism. While no replacement for a new clutch is needed in case of any socket being damaged, the maintenance cost generates more economic benefits.
    Type: Application
    Filed: August 7, 2002
    Publication date: January 29, 2004
    Inventor: Curtis Liu
  • Patent number: 6615683
    Abstract: A gear drive, including a first shaft, a first gear wheel on the first shaft, a second shaft a certain distance away from the first shaft, and a second gear on the second shaft. The second gear wheel engaged with the first gear wheel by way of helical gearing. A third gear wheel is mounted on the second shaft a certain axial distance away from the second gear wheel to compensate for backlash. The third gear wheel also engages with the first gear wheel by way of helical gearing and being axially shiftable with respect to the second gear wheel. An expansion element is arranged so as to change a distance between the second gear wheel and the third gear wheel as a function of temperature.
    Type: Grant
    Filed: December 18, 2001
    Date of Patent: September 9, 2003
    Assignee: Volkswagen AG
    Inventor: Dieter Voigt
  • Patent number: 6547689
    Abstract: The angular motion translator is a device with direct mechanical coupling which allows a user to reliably and durably change the angular relationship between two elements in a rotating frame (i.e. two output shafts) by changing the angular relationship between two elements in a static reference frame, whereby the change in the angular relationship of the elements in the rotating frame is proportional to the change in the angular relationship of the elements in the static reference frame. Essentially, the angular motion translator is comprised of two linked identical planetary gear sets facing one another as mirror images. Matching elements in the two planetary gear sets are held static, although one of the static elements may be rotated with respect to the other, matching elements are rigidly attached together so that they rotate as a single unit, and the remaining matching elements are attached to either the input shaft and the inner output shaft or the outer output shaft respectively.
    Type: Grant
    Filed: March 2, 2001
    Date of Patent: April 15, 2003
    Inventor: George Paul Baker, Jr.
  • Patent number: 6478031
    Abstract: This invention is concerned with improvements to a ledger for a rod-making machine of the type comprising a rod supporting part (14, 16) which is pivotally mounted on two linear motion devices (10; 12) each comprising a fixed gear (A), a first orbiting gear (B) which is preferably smaller than the fixed gear, and a pair of connected coaxial gears (C) and (D) of different diameter which also orbit about the axis of the fixed gear and which mesh respectively with the fixed gear and first orbiting gear (B), such that the effective gear ratio between the fixed gear (A) and the first orbiting gear (B) via the other two gears is 2:1, the rod supporting part being pivotally connected to the first orbiting gear (B) or to a crank connected thereto. According to the main improvement, an assembly including gears B, C and D and parts carrying them at appropriate positions is arranged to be readily replaceable to achieve a rod length change.
    Type: Grant
    Filed: November 5, 1999
    Date of Patent: November 12, 2002
    Assignee: Molins PLC
    Inventor: Michael Norman Smith
  • Patent number: 6457446
    Abstract: A phase control mechanism for adjusting the phase relationship between a cam shaft and a crank shaft and an internal combustion engine is disclosed, to enable variable valve timing within the engine. The mechanism is disposed between crank shaft (203) and cam shaft (202) and comprises a pulley (204) which is integrally connected to a bevel gear (216). Bevel gears (224) are supported in the cage (220) which is integrally coupled to the cam shaft (202). A control gear (210) meshes with the bevel gears (224) and the control gear (210) is connected to a shaft (208) which may be driven by a stepper motor (215) which drives the shaft (208) via a gear (209). Rotation of the gear (210) causes the gears (224) to advance or regress relative to the gear (214) and therefore relative to the pulley (204) and crank shaft (203) so as to change the valve timing of the engine.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: October 1, 2002
    Assignee: Aimbridge Pty Ltd.
    Inventor: Eric Paul Willmot
  • Patent number: 6450053
    Abstract: A device for ensuring correct tooth engagement during coupling of an adjustable, first gearwheel to a second gearwheel of a printing-material processing machine, includes a first adjustment device for adjusting the first gearwheel in a direction towards the second gearwheel during coupling, and further includes a protrusion and a guide for guiding the protrusion during the coupling, the protrusion being disposed eccentrically to one of the two gearwheels and being connected to the one gearwheel, so that, during rotation of the one gearwheel about a central axis thereof, the protrusion is rotatable together with the one gearwheel.
    Type: Grant
    Filed: November 8, 2000
    Date of Patent: September 17, 2002
    Assignee: Heidelberger Druckmaschinen
    Inventors: Jens Friedrichs, Peter Heiler, Arno Kern, Frank Kropp, Frank Schaum
  • Patent number: 6298751
    Abstract: A drive transmission apparatus for a twin-screw extruder is provided which transmits a rotational driving force from a single prime mover to a first screw and a second screw disposed in parallel to each other, which comprises a transmission shaft, two idler spur gears attached to the transmission shaft, a pair of mutually parallel idler shafts, two idler helical gears, and a helical gear engaging the two idler helical gears. A meshing adjustment device is incorporated into the design that is capable of adjusting the phase of meshing of the gears and tooth bearing in the gear trains of the drive transmission apparatus without the need to disassemble the components, which is a necessary inconvenience of the prior-art apparatus.
    Type: Grant
    Filed: November 7, 1997
    Date of Patent: October 9, 2001
    Assignee: Toshiba Kikai Kabushiki Kaisha
    Inventors: Akinori Ide, Kuniaki Endoh, Mitsuoki Hatamoto
  • Patent number: 6210281
    Abstract: A pair of concentrically mounted drive shafts are rotatable with respect to one another. Each drive shaft engages and drives at least one endless chain upon which lugs are mountable. A driven power shaft directly drives one of the drive shafts. The other drive shaft has a coaxially-mounted gear wheel that intermeshes with a pinion wheel that is rotatable and is interconnected with the driven power shaft such that when the pinion wheel is inhibited from rotating power is delivered from the driven power shaft through the locked pinion gear to the gear wheel and drive shaft affixed thereto.
    Type: Grant
    Filed: October 21, 1998
    Date of Patent: April 3, 2001
    Assignee: The Mead Corporation
    Inventors: Glenn Robinson, Will L. Culpepper
  • Patent number: 6122984
    Abstract: A phase control mechanism controls phase relationship between two shafts. The phase control mechanism may be used to control various mechanical devices such as the pitch of propellers of aircraft and boats, the pitch of power producing windmills, opening and closing lathe and drill chucks and controlling the eccentricity of some forms of continuously variable transmissions when the mechanisms are not only stationary but also in normal operational motion. The phase control mechanism includes first gears 3,4; 56,64 coupled to the output shafts which are to be phase controlled. A transfer gear 5; 16,17; 52,54 is provided for rotation or operation independent of the input and is coupled to the first gears 3,4; 56,64 to allow rotary motion to be transferred between the first gear members and a phase adjuster 10; 80 causes the first gears 3,4; 56,64 to advance or regress relative to one another to change the phase relationship between the outputs.
    Type: Grant
    Filed: August 21, 1998
    Date of Patent: September 26, 2000
    Assignee: Aimbridge Pty Ltd.
    Inventor: Eric Paul Willmot
  • Patent number: 6122985
    Abstract: A torque-dividing transmission, particularly for aircraft, having a single nput pinion and a single output gear, both rotating about respective fixed axes; at least two gear assemblies, both interposed between the pinion and the output gear, and each for transferring a respective portion of the torque from the pinion to the output gear; and a torque-dividing device for dividing the input torque equally between the two gear assemblies; the torque-dividing device having, for each gear assembly, a number of elongated elements elastically bendable in use.
    Type: Grant
    Filed: May 5, 1998
    Date of Patent: September 26, 2000
    Assignee: Elasis Sistema Ricerca Fiat Nel Mezzogiorno Societa Consortile per Azioni
    Inventor: Paolo Altamura
  • Patent number: 6093009
    Abstract: The timing gear device or structure (26) has a pair of timing gears (28, 30) mounted on parallel rotating shafts (22, 24). Each timing gear (28, 30) has an outer gear portion (32) and a concentric interfitting inner gear portion (34). Outer gear portions (34) have teeth (48) which intermesh to transmit torque from drive shaft (22) to driven shaft (24). Each concentric inner gear portion (34) has longitudinally extending splines (44) in meshing relation with splines (46) on the inner periphery of outer gear portion (32). As shown in particular in FIGS. 5-8, the timing gears can be replaced by timing structure (26) by angular alignment or indexing of driven shaft (24) with inner gear portion (34) secured thereto while outer concentric gear portion (32) is removed. For indexing, drive shaft (22) is fixed and timing gear (28) is mounted thereon by key (40).
    Type: Grant
    Filed: February 17, 1999
    Date of Patent: July 25, 2000
    Inventor: Morris G. Jacks, Jr.
  • Patent number: 6014907
    Abstract: An adjusting device for the fine adjustment of the angle of rotation between two rotary elements (1, 2), which are driving and driven, respectively, comprises first and second gear units (6, 17). The second gear unit (17) comprises two eccentric gear components (20, 20') which are internally connected via a coupling (21) that permits each component separately to perform eccentric translation movements. The sleeve components have external gear rings (22, 22') which cooperate with internal gear rings (23, 23'), that are co-rotatively connected with output and input rotary members (8, 9), respectively, of the first gear unit (6). The external gear ring (22, 22') of the individual eccentric gear component has a smaller diameter and fewer teeth than each internal gear ring (23, 23') and is eccentric relative to the same. By the fact that the second gear unit in one and the same step gives a large gear change, a relative rotary motion of, e.g.
    Type: Grant
    Filed: February 19, 1998
    Date of Patent: January 18, 2000
    Assignee: Scandrive Control AB
    Inventor: Ulf Rilbe
  • Patent number: 5802920
    Abstract: A double gear wheel of a turning device on printing presses comprises an adjustment gear wheel (4). On the adjustment gear wheel a conical seat (7) is formed, which conical seat (7) is engaged in a conical recess (9) formed on the corresponding stationary gear wheel (2), when the two gear wheels (2, 4) are clamped to one another by means of a clamping body (5). The double gear wheel described above has a compact construction, is easy to manufacture with a high degree of precision, and without the requirement for any additional elements essentially guarantees a frictional engagement which reliably prevents the mutual rotation of the two gear wheels (2, 4) during operation of the printing press, even on printing presses which consist of a large number of printing mechanisms.
    Type: Grant
    Filed: November 14, 1996
    Date of Patent: September 8, 1998
    Assignee: Heidelberger Druckmaschinen Aktiengesellschaft
    Inventor: Willi Becker
  • Patent number: 5738055
    Abstract: Apparatus especially useful in internal combustion engines for adjusting the timing and including a shaft having a longitudinal axis and mounted for rotation about said axis with a circular drive member carried by the shaft. An adjustable key assembly is located between the shaft and the drive member for conducting drive forces therebetween while permitting selective relative angular adjustment. The adjustable key assembly includes a key member having a first end pivotally engaged with one of the shaft and drive member and a second end slidably engaged with the other of the shaft and drive member. The second end of the key member and the other of the shaft and drive member include cooperating inclined surfaces for producing relative angular movement between the shaft and the drive member when the key member is selectively pivoted about the first end.
    Type: Grant
    Filed: April 1, 1997
    Date of Patent: April 14, 1998
    Assignee: Cloyes Gear and Products, Inc.
    Inventor: Timothy R. Allen
  • Patent number: 5711318
    Abstract: A trimming control device for a cigarette manufacturing machine is provided with a pair of rotatable trimming disks having pockets on their peripheral edges for trimming a shredded tobacco layer on a tobacco band, a detecting device for detecting a filling density of the shredded tobacco in a tobacco rod, and a control board to which output from the detecting device is supplied. The control board makes a filling density distribution in the cigarette rod by sampling the output of the detecting device, extracts a peak zone including a peak from the filling density distribution, and determines a target cutting position of a tobacco rod at the central position of the peak zone.
    Type: Grant
    Filed: February 15, 1996
    Date of Patent: January 27, 1998
    Assignee: Japan Tobacco, Inc.
    Inventors: Masayoshi Saitoh, Shigemitsu Inomata, Shigenobu Kushihashi
  • Patent number: 5669266
    Abstract: A coupling gear for transmitting rotation of a first shaft onto a second shaft has a first coupling wheel fixedly connected to the first shaft and a second coupling wheel fixedly connected to the second shaft. A third coupling wheel is driven by the first coupling wheel and a fourth coupling wheel is driven by the third coupling wheel and drives the second coupling wheel. A first coupler couples the rotational axle of the first coupling wheel and the rotational axle of the third coupling wheel. A second coupler couples the rotational axle of the third coupling wheel and the rotational axle of the fourth coupling wheel. A third coupler couples the rotational axle of the fourth coupling wheel and the rotational axle of the second coupling wheel. A control device for adjusting with a control movement the rotational phase of the first and second shafts has a control element for adjusting the angle between the first, second, and third couplers.
    Type: Grant
    Filed: February 8, 1996
    Date of Patent: September 23, 1997
    Assignee: Meta Motoren- und Energie-Technik GmbH
    Inventor: Peter Kreuter
  • Patent number: 5651314
    Abstract: In a rotary printing press, an apparatus for adjusting the lateral and circumferential position of the plate cylinder is provided. The apparatus includes a sleeve having an inner surface with threads disposed thereon; a shaft disposed within the sleeve, and connected to the machine element such that when the shaft moves laterally the machine element is moved laterally, the shaft having an outer surface with threads disposed thereon which engage the threads disposed on the inner surface of the shaft; a gear assembly coupled to the sleeve, such that a rotational movement of the sleeve causes a circumferential movement of the machine element; a first drive for rotating the shaft, such that when the shaft is rotated, the shaft moves the machine element laterally; and a second drive for rotating the sleeve, such that when the sleeve is rotated, the sleeve moves the gear, and the gear rotates the machine element circumferentially.
    Type: Grant
    Filed: June 21, 1996
    Date of Patent: July 29, 1997
    Assignees: Heidelberg Harris, Inc., Heidelberger Druckmaschinen AG
    Inventor: Brian Joseph Gentle
  • Patent number: 5569783
    Abstract: The present invention relates to a process to produce 1,3-diamino-2,4,6-trinitrobenzene (DATB) or 1,3,5-triamino-2,4,6,-trinitrobenzene (TATB) by:(a) reacting at ambient pressure and a temperature of between about 0.degree. and 50.degree. C. for between about 0.1 and 24 hr, a trinitroaromatic compound of structure V: ##STR1## wherein X, Y, and Z are each independently selected from --H, or --NH.sub.2, with the proviso that at least 1 or 2 of X, Y, and Z are hydrogen,with an amount effective to produce DATB or TATB of 1,1,1-trialkylhydrazinium halide wherein alkyl is selected from methyl, ethyl, propyl or butyl and halide is selected from chloride, bromide or iodide.
    Type: Grant
    Filed: May 12, 1995
    Date of Patent: October 29, 1996
    Assignee: The Regents of the University of California
    Inventors: Alexander R. Mitchell, Philip F. Pagoria, Robert D. Schmidt