Intersecting Axes Patents (Class 74/416)
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Publication number: 20110126474Abstract: A reversible sealing mechanism for sealing a bulkhead having a first central aperture defined along a central axis and disposed between first and second compartments includes a cover member having a recess defined therein by a substantially cylindrical sidewall and adapted to cover the first central aperture. A wedge ring having a generally cylindrical body is accommodated by the first and second central apertures and is configured to operatively engage the cover member. A mechanical input is operative to reversibly rotate the wedge ring about the central axis such that a rotation of the wedge ring in a first direction urges the cover member in the axial direction into a sealed position.Type: ApplicationFiled: December 1, 2009Publication date: June 2, 2011Applicant: Lockheed Martin CorprationInventors: John Snediker, Daniel Skurdal
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Publication number: 20110108356Abstract: A variable transmission ratio mechanism comprises: an input member capable of rotating around a first axis; and an intermediate member that allows the differential rotation of the output member. The intermediate member is capable of rotating around a second axis that is slanted relative to the first axis. On first and second power transmission surfaces of the intermediate member, corresponding first and second engaging sections are respectively arranged according to corresponding first and second arrangement pitch circles centered on the second axis. On corresponding first and second engagement circles centered on the first axis, the first and second engaging sections are respectively engageable with corresponding first and second engageable sections. The diameter of the first arrangement pitch circle differs from the diameter of the second arrangement pitch circle.Type: ApplicationFiled: June 26, 2009Publication date: May 12, 2011Applicant: JTEKT CORPORATIONInventor: Hidetaka Otsuki
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Publication number: 20110108354Abstract: A transmission ratio variable mechanism includes an input member and an output member, which are rotatable around a first axis, an inner ring arranged to connect the input and output members to each other so as to be differentially rotatable, an outer ring, and a motor. A second axis serving as a center axis of the inner ring and the outer ring is inclined to the first axis. The transmission ratio variable mechanism includes uneven engagement sections including a projection provided on one of each of end surfaces of the inner ring and a power transmission surface corresponding to the end surface, and a recess. The inner ring includes a first member forming the first end surface and a second member forming the second end surface. The first and second members are formed separately from each other and coupled to each other so as to be movable together.Type: ApplicationFiled: June 30, 2009Publication date: May 12, 2011Applicant: JTEKT CORPORATIONInventors: Atsushi Yao, Satoru Murao, Yoichiro Sankai
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Publication number: 20110108355Abstract: A transmission ratio variable mechanism includes an input member and an output member arranged to rotate around a first axis, an intermediate member arranged to connect the input member and the output member so as to be differentially rotatable, and a motor arranged to drive the intermediate member. The motor includes a cylindrical rotor arranged to rotate around the first axis. An inner periphery of the rotor is arranged to support the intermediate member and arranged to rotatably support the input member and the output member via bearings, respectively.Type: ApplicationFiled: July 6, 2009Publication date: May 12, 2011Applicant: JTEKT CORPORATIONInventors: Akihiko Shiina, Motoyasu Yamamori
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Patent number: 7926379Abstract: The invention relates to a gear pair consisting of a crown gear (1) and of a pinion gear (2) provided in the form of a spur gear with an axis crossing angle of 90°. According to the invention, the teeth (3) of the pinion gear (2), in order to reduce an undercut of the teeth (5) of the crown gear (1), have a pressure angle, which increases from the outside inward in a radial direction with regard to the crown gear (1), or in the event of a constant pressure angle, have a profile offset, which decreases from the outside inward in a radial direction with regard to the crown gear (1).Type: GrantFiled: December 9, 2005Date of Patent: April 19, 2011Assignee: Thyssenkrupp Prazisionsschmiede GmbHInventors: Peter Gutmann, Heinrich Stettinger, Frank Zerling
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Publication number: 20110067513Abstract: A gear assembly for retrofitting a rotatable turret assembly having pre-existing mounting brackets. A gear assembly housing is cut so that it fits onto the pre-existing housing mounting brackets. An operator controlled hand crank is connected to an input shaft. The input shaft extends through the gear assembly housing and includes an input shaft gear that meshes with a drive shaft gear. The size of the drive shaft gear has been maximized so that it fits within the gear housing that has been mounted on the pre-existing mounting brackets. A drive shaft is connected to the drive shaft gear and extends through the gear housing. A sprocket is connected to the end of the drive shaft gear. The sprocket is mechanically linked to the turret assembly for controlling the rotation of the turret assembly. In a preferred embodiment, the turret assembly is mounted to a HMMWV.Type: ApplicationFiled: September 24, 2009Publication date: March 24, 2011Inventor: Ryan Wilson
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Publication number: 20100288066Abstract: A harmonic speed reducer for robots is provided with a frame, an annular circular spline, a cylindrical flexspline, and an elliptical wave generator. The frame has internal threads each tapped parallel to the center axis line, the threads each extending from a circular spline mounting seat to the inside of the frame. The internal thread in the circular spline mounting seat has a peripheral edge portion at an opening thereof with a recess.Type: ApplicationFiled: May 14, 2010Publication date: November 18, 2010Applicant: DENSO WAVE INCORPORATEDInventors: Yoshitaka Hirai, Masatoshi Kojima
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Publication number: 20100242650Abstract: A driving force transmitting device having a direction changing gear mechanism which transmits a rotation torque from a drive shaft to a driven shaft having an axis extending in a direction different from a direction of an axis of the drive shaft. The direction changing gear mechanism includes an output, an input gear attached to the drive shaft for restricting a relative rotation and engaged with the output gear, a gear housing rotatably supporting the output gear and the input gear under engagement condition, wherein one of the output gear and the input gear is provided with a rotation phase adjusting portion exposed outside for adjusting a rotation phase of the output gear relative to a rotation phase of the second engagement portion of the driven shaft upon the output gear being assembled to the driven shaft.Type: ApplicationFiled: March 26, 2010Publication date: September 30, 2010Applicant: AISIN SEIKI KABUSHIKI KAISHAInventors: Yoshitaka KOGA, Hirokazu Suzumura, Jueru Shimizu
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Publication number: 20100218632Abstract: A driving force distribution/transmission device suppresses a shift of lubrication oil when a vehicle makes a turn, smoothly lubricates sliding parts, and improves reliability. The driving force distribution/transmission device 1 includes a gear input rotary member 53 and a gear output rotary member 55 that are interlocked to transmit a driving force through the meshing of a drive pinion gear 91 and a ring gear 93; and a left-right pair of clutch output adjusting mechanisms 57 and 59 coupled with both ends of the gear output rotary member 55, to carry out a driving force output adjustment through the engagement of frictional multiplate clutches 139. A closed and partitioned gear room 56 contains the drive pinion gear 91 and ring gear 93 therein. The main clutches 139 are contained in a left-right pair of closed and partitioned clutch rooms 125, respectively. Lubrication spaces in the three separate rooms, i.e.Type: ApplicationFiled: May 12, 2008Publication date: September 2, 2010Applicant: GKN Driveline Torque Technolgy K.K.Inventors: Susumu Sasaki, Atsushi Tamura, Isao Hirota
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Publication number: 20100179012Abstract: A first gear set includes an input member that serves as a first gear and an inner ring that serves as a second gear. A first end of the inner ring is inclined with respect to the input member and is in mesh with the input member. The input member has a plurality of retention grooves that are formed in an input member body and a plurality of pins that are retained in the respective retention grooves and that respectively constitute teeth of the input member. The first end has a plurality of tooth grooves that are engageable with the pins. A resultant force of forces applied to each pin from the retention groove and the tooth groove urges the pin toward the retention groove.Type: ApplicationFiled: January 6, 2010Publication date: July 15, 2010Applicant: JTEKT CORPORATIONInventors: Yoshikazu KUROUMARU, Masahide NITANO, Satoshi MOTOYAMA
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Patent number: 7707721Abstract: In a method of manufacturing multiple transmission units with individually selectable gear ratios that vary from unit to unit, a gear pair having a desired transmission ratio is selected from a multiplicity of interchangeable gear pairs that includes both spiroplan gears and conventional crown gear and pinion combinations. The selected gear pair is then installed into a housing having first and second bearing sections configured to support bearings in which the shafts of the selected gear pair are rotatably mounted. The bearing sections are configured such that, for every gear pair that may be selected from among the multiplicity of gear pairs, the bearing sections support the first and second shafts in such a position and orientation that teeth of the gears engage with each other and a longitudinal axis of one of the gears of the gear pair is offset by a fixed distance from a longitudinal axis of the other.Type: GrantFiled: March 27, 2008Date of Patent: May 4, 2010Assignee: SEW-EURODRIVE GmbH & Co.Inventor: Hubert Leibold
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Publication number: 20100078608Abstract: An actuator comprises a gear arrangement operatively connected to a rotatable input of a linearly extendable actuator device, wherein the gear arrangement comprises a pinion gear and a face gear in meshing engagement with one another.Type: ApplicationFiled: September 28, 2009Publication date: April 1, 2010Applicant: Goodrich Actuation Systems LimitedInventors: Michael Paul Somerfield, Alan M. Thompson
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Publication number: 20100075795Abstract: The invention relates to a crown gear (2) which can engage a spur gear (201 ), and to a differential assembly (25) in the form of a crown gear differential for the driveline of a motor vehicle. The crown gear (2) comprises an annular toothing portion (3) forming a crown toothing (6), and a hub (4) axially projecting beyond the crown toothing (6). Between the crown toothing (6) and the hub (4) there are formed transition portions (12) which adjoin addendum lines (8) of the crown toothing (6) and change into the hub (4).Type: ApplicationFiled: April 8, 2006Publication date: March 25, 2010Inventors: Werner Krude, Ralf Leuschen, Michael Engelmann
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Patent number: 7665380Abstract: A hypoid gear tooth surface design method, wherein normal lines and helical angles of two tooth surfaces are properly selected so as to position action limit curves (L3Acc) on the outer of the areas (R2t to R2h) where the tooth surfaces are formed, whereby undercut to a gear small end side can be prevented and, by setting the involute helicoids of two tooth surfaces on a pinion side to an equal lead, a pinion top land and a gear top land (z2h=0) can be made generally equal to each other in tooth lengthwise direction, such that sharpening of the top land can be prevented.Type: GrantFiled: February 27, 2001Date of Patent: February 23, 2010Assignee: Kabushiki Kaisha Toyota Chuo KenkyushoInventor: Sho Honda
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Patent number: 7571666Abstract: Case parts of an adjustment mechanism for a seat adjustment device of a motor vehicle can be joined together along a parting line via joint surfaces. The joint surfaces are provided for the purpose of reciprocal placement of the case parts by way of a joining process. Contact surfaces of the case parts are present in addition to the joint surfaces The contact surfaces are in non-parallel alignment to the joint surfaces. Transferred gear forces running parallel to at least a section of the joint surfaces are absorbed by the contact surfaces. The case parts are fastened to one another by way of screw connections. The contact surfaces of the one case part are respectively held in position with respect to the contact surfaces of the other case part solely due to the screw connections. With such a case, high loads can be absorbed in spite of a small size.Type: GrantFiled: June 7, 2006Date of Patent: August 11, 2009Assignees: KEIPER GmbH & Co. KG, IMS Gear GmbHInventors: Michael Borbe, Stefan Wetzig, Wolfram Hofschulte, Michael Wöhrle
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Patent number: 7530439Abstract: A drive device includes a first shaft, a second shaft disposed at a position deviated from a shaft line of the first shaft, a drive source that drives the first shaft to rotate, and a drive force transmitting unit connecting the first shaft to the second shaft via the drive force transmitting unit to transmit a drive force of the drive source from the first shaft to the second shaft. The drive force transmitting unit includes a reverse preventing mechanism that prevents the first shaft from being rotated in a reverse direction. The reverse preventing mechanism includes a one-way clutch, and the drive force transmitting unit further includes a reduction mechanism that reduces a rotational speed of the one-way clutch to be lower than a rotational speed of the first shaft.Type: GrantFiled: March 17, 2005Date of Patent: May 12, 2009Assignee: Ricoh Company, Ltd.Inventors: Mitsuru Yamada, Yutaka Fukuchi, Yuji Arai
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Patent number: 7530171Abstract: A shaving apparatus has plurality of shaving heads, each with a rotatable cutting member (5) associated with and rotatable relative to a shear plate (3). For driving the cutting members (5), a plurality of drive units (9) is provided, each of said units extending at least from drive rim (7) engaged for driving the drive unit to a coupling end (27) coupled to one of the cutting members (5) for transmitting a rotation of the drive unit (9) to the cutting member (5). The drive rims (7) of the drive units (9) are suspended for rotation about axes of rotation (20) that are oriented at angles relative to each other and diverge from each other in a direction from the drive rim (7) to the coupling (27).Type: GrantFiled: January 12, 2004Date of Patent: May 12, 2009Assignee: Koninklijke Philips Electronics N.V.Inventors: Sint Baron, Pieter Herman Klokman, Bauke Kalma, Thewis Minne Westra
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Publication number: 20090056486Abstract: A variable speed transmission including a housing, a frusto-conical gear having a hollow extending longitudinally through the gear and a plurality of spaced teeth on an inner and/or outer surface thereof. The plurality of spaced apart teeth include alternately teeth having a first addendum and teeth having a second or larger addendum. The transmission also includes a power shaft and a plurality of sliding face gears adapted to engage an input gear from an engine and a drive gear for engaging the frusto-conical gear.Type: ApplicationFiled: November 5, 2008Publication date: March 5, 2009Inventor: Hussain Y. Mothaffar
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Publication number: 20090000412Abstract: An angled drive device transforms rotational motion about one axis into rotation motion about a second non-parallel axis, wherein the inner workings of the angled drive device are substantially formed using the inner races of bearings. By incorporating multiple components of the exemplary angled device drive into inner races of the support bearings, the costs of manufacturing the angled drive device can be reduced, the angled drive device can be more reliable, and the angled drive device is more compact, allowing it to function in situations with fixed space constraints.Type: ApplicationFiled: June 28, 2007Publication date: January 1, 2009Applicant: Lutco, Inc.Inventor: Joseph R. March
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Publication number: 20080307914Abstract: A drive mechanism for a motorized vehicle is disclosed which is reliable and requires less maintenance. The drive mechanism includes a differential having at least one rotatable shaft extending outward therefrom and having a first gear mounted thereon. A drive shaft having a first end and a second end with a gear mounted to each of the first and second ends rotatably meshes with the first gear on the rotatable shaft. The first gear also provides a pivot point for the drive shaft. The drive mechanism further includes a hub capable of supporting a rotatable member. The hub has a second gear mounted thereto which rotatably meshes with the gear mounted to the second end of the drive shaft. Lastly, the drive mechanism includes a hollow support arm extending between the pivot point and the hub. The hollow support arm has a vertical vector and completely encloses the drive shaft.Type: ApplicationFiled: June 10, 2008Publication date: December 18, 2008Inventor: Nicholas A. Trapp
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Publication number: 20080307913Abstract: The invention relates to a gearbox (10), and to a method for producing the gearbox (10) with axial tolerance compensation, in particular for displacing movable parts in a motor vehicle, that includes a housing (12) that is composed of at least two housing parts (14, 16), a pinion (34), and a worm gear (26) that has a central axial recess (42). The inventive method includes the following production steps: the worm gear (26) and the pinion (34) are located as separate parts on a common central axis (28) in at least one of the two housing parts (14, 16) the two housing parts (14, 16) are joined and connected along the axis (28) such that, during axial assembly of the two housing parts (14, 16), the pinion (34) is pressed into the recess (42) of the worm gear (26) in a non-rotatable manner.Type: ApplicationFiled: August 12, 2005Publication date: December 18, 2008Inventors: Hans-Juergen Oberle, Caroline Weinman
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Patent number: 7434489Abstract: A bicycle drive system includes a front gear face, a rear gear face, a front guide assembly, a rear guide assembly, and a drive shaft coupled to a rear-suspension frame via a rear hub and a crank spindle. The bicycle drive system operates independently of the frame. Shifting from one gear to another is controlled by a shift controller. Each shift of the shift controller shifts both the front and rear guide assemblies at the same time. The shift controller is preferably coupled to the front and rear guide assemblies via a cable system.Type: GrantFiled: December 3, 2004Date of Patent: October 14, 2008Inventor: Peter Scranton
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Patent number: 7401534Abstract: An actuator device includes a drive motor, gears and pairs of rotary shafts. The gears are rotated by torque outputted from the drive motor. Each pair of rotary shafts corresponds to one of the gears. The rotary shafts in each pair extend from both axial sides of the corresponding gear, respectively. At least two of the rotary shafts function as output shafts that are capable of outputting the torque of the corresponding gear or gears to the outside. This is capable of dealing with various requirements.Type: GrantFiled: May 25, 2004Date of Patent: July 22, 2008Assignee: ASMO Co., Ltd.Inventors: Naohiko Shibata, Tomonobu Hyodo, Yukinobu Kujira
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Patent number: 7370549Abstract: A reduction gear for forming a geared motor having a motor and a reduction gear is provided. The reduction gear for a geared motor includes an intermediate orthogonal gear head having an orthogonal transfer mechanism for changing a rotational direction of power delivered from the motor into an orthogonal direction and houses the orthogonal transfer mechanism in a separate intermediate casing. The reduction gear further includes a rear stage parallel gear head having a parallel shaft reduction mechanism including an output shaft serving as a final output shaft of the geared motor when the geared motor is formed, the rear stage parallel gear head being capable of directly connecting to a rear stage of the intermediate orthogonal gear head, with the parallel shaft reduction mechanism being housed in a separate rear stage casing.Type: GrantFiled: March 21, 2003Date of Patent: May 13, 2008Assignee: Sumitomo Heavy Industries, Ltd.Inventors: Takashi Haga, Mitsuhiro Tamura
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Patent number: 7302873Abstract: An angle drive having a housing (11) with a first axis (A1) for bearing means and a second axis (A2) for bearing means, which latter axis (A2) intersects the first axis (A1) at right angles, having an input shaft 16 which is supported in the housing, which carries an input ring gear (19) and is positioned on the first axis (A1), having an output shaft (28) which is supported in the housing, which carries an output gearwheel (27) and is positioned on the second axis (A2), having a counter ring gear 20 which is supported in the housing, which is positioned on the first axis (A1) and which, with reference to the second axis (A2) is arranged and designed symmetrically relative to the input ring gear (19), having at least one intermediate gearwheel which is supported in the housing, which is arranged on an axis (A3, A4) positioned radially relative to the first axis (A1) and in one plane together with the second axis (A2) and which is provided with the same type of toothing as the output gearwheel (27).Type: GrantFiled: April 29, 2005Date of Patent: December 4, 2007Assignee: GKN Automotive GmbHInventor: Hans-Peter Nett
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Patent number: 7213488Abstract: A swivel gearbox system having multiple drivetrain outputs is disclosed. The system comprises a swivel gearbox and an angled divider gearbox where the power input and divided power output shafts are not in the same plane. The swivel gearbox is a right angle gearbox to permit power input to the divider through a 360 degree range. The output shaft of the swivel gearbox functions as the input shaft of the angled, divider gearbox. The input shaft for the swivel gearbox and the multiple divided output shafts for the divider gearbox are positioned relative to one another in parallel, offset planes, shared shaft between the swivel gearbox and the angled, divider gearbox is preferably positioned in a plane perpendicular to the other input and output shafts. In another embodiment, an angled divider gearbox is provided.Type: GrantFiled: January 14, 2004Date of Patent: May 8, 2007Inventor: Jeffrey K. Daniel
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Patent number: 7107871Abstract: A crown gear assembly including a crown gear which is rotatably supported around a first axis (A1) and which forms teeth (13) which are provided with flanks (14, 15) whose mantle lines extend substantially radially relative to the axis (A1), as well as a pinion (21) which is rotatably supported around a second axis (A2) extending perpendicularly relative to the first axis (A1), and which forms teeth (23) which are provided with flanks whose mantle lines extend substantially parallel relative to the axis (A2), wherein, on the radial outside of the teeth (13) of the crown gear, the pinion (21) is provided with a collar (25) which is adapted to contact a circumferential face of the crown gear (11).Type: GrantFiled: July 21, 2003Date of Patent: September 19, 2006Assignee: GKN Automotive GmbHInventors: Colin Zaers, Bernd Constantin
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Patent number: 7010995Abstract: The invention relates to an angle drive having a drive housing (51) with a first axis (A1) for bearing means and with a second axis (A2) for bearing means, which latter axis (A2) is aligned radially relative to the first axis (A1). The drive housing (51) comprises an outer ring (101) which forms two opposed annular flanges positioned perpendicularly relative to the axis (A1), and a hub member (83) which is positioned co-axially relative to the outer ring (101) and which, by means of at least one radial spoke (84), is connected to the outer ring (101). The hub member (83) forms a bearing region for an input shaft (56). The housing (51) forms a sleeve member (55) which is attached to the outside of the outer ring (101). The sleeve member (55) forms a bearing region for an output shaft (68).Type: GrantFiled: November 21, 2001Date of Patent: March 14, 2006Assignee: GKN Automotive GmbHInventor: Hans-Peter Nett
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Patent number: 6912926Abstract: The invention relates to a gear transmission comprising a first shaft, an intermediate shaft which is parallel to the first shaft, a first cylindrical pinion and a second cylindrical pinion for coupling the rotation of the first shaft and the intermediate shaft, a third cylindrical pinion which can rotate with the first shaft, and a fourth cylindrical pinion which can rotate with the intermediate shaft, and a double-toothed face gear mounted between and meshing with the third and fourth cylindrical pinions.Type: GrantFiled: November 6, 2001Date of Patent: July 5, 2005Assignee: ASS AGInventor: Augustinus F.H. Basstein
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Patent number: 6889572Abstract: An angle drive having a housing (11) with a first axis (A1) for bearing means and a second axis (A2) for bearing means, which latter axis (A2) intersects the first axis (A1) at right angles, having an input shaft 16 which is supported in the housing, which carries an input ring gear (19) and is positioned on the first axis (A1), having an output shaft (28) which is supported in the housing, which carries an output gearwheel (27) and is positioned on the second axis (A2), having a counter ring gear 20 which is supported in the housing, which is positioned on the first axis (A1) and which, with reference to the second axis (A2) is arranged and designed symmetrically relative to the input ring gear (19), having at least one intermediate gearwheel which is supported in the housing, which is arranged on an axis (A3, A4)positioned radially relative to the first axis (A1) and in one plane together with the second axis (A2) and which is provided with the same type of toothing as the output gearwheel (27).Type: GrantFiled: November 21, 2001Date of Patent: May 10, 2005Assignee: GKN Automotive GmbHInventor: Hans-Peter Nett
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Publication number: 20040118235Abstract: A transmission system including a first gear comprising a first side having an engaging semi-annular section and a non-engaging semi-annular section; and plurality of engaging gears for engaging with the engaging semi-annular section, wherein the engaging gears are configured such that at least one of the engaging gears is engaged to the engaging semi-annular section of the first gear at a particular angular orientation of the first gear, and at least one of the engaging gears is not engaged to the engaging semi-annular section at the particular angular orientation of the first gear.Type: ApplicationFiled: December 11, 2003Publication date: June 24, 2004Inventor: Sherif Eldally
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Patent number: 6742409Abstract: A transmission device between a primary motor shaft (1) and an output shaft, includes a casing (3) constituted by two half shells, a driving member (4), and a driven member (5) mounted on the output shaft (2). The driving member (4) is held in position by bearings (6A, 6B) provided in each half shell (3A, 3B), these bearings (6A, 6B) being disposed facing each other in the assembled condition of the half shells (3A, 3B).Type: GrantFiled: April 3, 2002Date of Patent: June 1, 2004Assignee: France ReducteursInventor: Robert Blanchard
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Publication number: 20040069083Abstract: A crown gear assembly including a crown gear which is rotatably supported around a first axis (A1) and which forms teeth (13) which are provided with flanks (14, 15) whose mantle lines extend substantially radially relative to the axis (A1), as well as a pinion (21) which is rotatably supported around a second axis (A2) extending perpendicularly relative to the first axis (A1), and which forms teeth (23) which are provided with flanks whose mantle lines extend substantially parallel relative to the axis (A2), wherein, on the radial outside of the teeth (13) of the crown gear, the pinion (21) is provided with a collar (25) which is adapted to contact a circumferential face of the crown gear (11).Type: ApplicationFiled: July 21, 2003Publication date: April 15, 2004Inventors: Colin Zaers, Bernd Constantin
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Patent number: 6612195Abstract: A face gear transmission system divides the input torque into multiple kinematic paths. The first kinematic scheme consists of a drive shaft and driven shaft having a plurality of pinions which contact a primary face gear. The second kinematic scheme consists of two independent symmetrical gear paths. One is a first pinion, a first idler and a first idler face gear and the primary face gear. The other independent gear path is a pinion on the second shaft, the idler, and second idler face gear and the primary face gear. The face gear transmission is especially applicable to rotorcraft having one or more input drive shafts to provide a proprotor transmission system which is relatively small in size and light in weight.Type: GrantFiled: November 26, 2001Date of Patent: September 2, 2003Assignee: Sikorsky Aircraft CorporationInventors: Yuriy Z. Gmirya, Jules G. Kish
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Publication number: 20030140718Abstract: An angle drive having a housing 11 with a first axis A1 for bearing means and a second axis A2 for bearing means, which latter axis A2 intersects the first axis A1 at right angles, having an input shaft 16 which is supported in the housing, which carries an input ring gear 19 and is positioned on the first axis A1, having an output shaft 28 which is supported in the housing, which carries an output gearwheel 27 and is positioned on the second axis A2, having a counter ring gear 20 which is supported in the housing, which is positioned on the first axis A1 and which, with reference to the second axis A2, is arranged and designed symmetrically relative to the input ring gear 19, having at least one intermediate gearwheel which is supported in the housing, which is arranged on an axis A3, A4 positioned radially relative to the first axis A1 and in one plane together with the second axis A2 and which is provided with the same type of toothing as the output gearwheel 27.Type: ApplicationFiled: December 18, 2002Publication date: July 31, 2003Inventor: Hans-Peter Nett
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Publication number: 20030121345Abstract: The invention relates to an angle drive having a drive housing 51 with a first axis A1 for bearing means and with a second axis A2 for bearing means, which latter axis A2 is aligned radially relative to the first axis A1. The drive housing 51 comprises an outer ring 101 which forms two opposed annular flanges positioned perpendicularly relative to the axis A1, and a hub member 83 which is positioned co-axially relative to the outer ring 101 and which, by means of at least one radial spoke 84, is connected to the outer ring 101. The hub member 83 forms a bearing region for an input shaft 56. The housing 51 forms a sleeve member 55 which is attached to the outside of the outer ring 101. The sleeve member 55 forms a bearing region for an output shaft 68.Type: ApplicationFiled: October 16, 2002Publication date: July 3, 2003Inventor: Hans-Peter Nett
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Publication number: 20030097893Abstract: A face gear transmission system divides the input torque into multiple kinematic paths. The first kinematic scheme consists of a drive shaft and driven shaft having a plurality of pinions which contact a primary face gear. The second kinematic scheme consists of two independent symmetrical gear paths. One is a first pinion, a first idler and a first idler face gear and the primary face gear. The other independent gear path is a pinion on the second shaft, the idler, and second idler face gear and the primary face gear. The face gear transmission is especially applicable to rotorcraft having one or more input drive shafts to provide a proprotor transmission system which is relatively small in size and light in weight.Type: ApplicationFiled: November 26, 2001Publication date: May 29, 2003Inventors: Yuriy Z. Gmirya, Jules G. Kish
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Patent number: 6564665Abstract: The invention relates to a gear unit with hollow shaft for gate drives, preferably for driving sectional and roller gates. According to the invention the gear unit comprises a hollow shaped part which can be introduced into the hollow shaft, the outside and inside of which are made in such a way that the connection with a shaft to be accomodated in the hollow shaped part and with the hollow shaft accomodating the hollow shaped part is form-locking in the turning direction.Type: GrantFiled: November 22, 2000Date of Patent: May 20, 2003Assignee: Marantec Antriebs-und Steuerungstechnik GmbH & Co. Produktions KGInventor: Michael Hörmann
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Patent number: 6561055Abstract: An actuator for a vent window of a motor vehicle wherein the drive mechanism interconnecting the output shaft of the motor and the pivot arm controlling the vent window comprises a first worm driven by the motor output shaft, a first worm wheel driven by the first worm, a second worm driven by the first worm wheel, and a second worm wheel driven by the second worm in driving the pivot arm. The first worm wheel is formed of a plastic material and the actuator further includes a coil spring mounted on the housing proximate the second worm wheel and operative to assist the second worm wheel in generating a sealing force sufficient to positively seal the vent window against a window seal of the motor vehicle.Type: GrantFiled: April 20, 2001Date of Patent: May 13, 2003Assignee: Hi-Lex CorporationInventor: Michael F. Turk
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Publication number: 20030000326Abstract: A control drive according to the related art does not have a potentiometer that allows a position of the motor or the driven wheel to be registered.Type: ApplicationFiled: June 11, 2002Publication date: January 2, 2003Inventors: Wolfgang Reeb, Bernd Diebold, Hans-Peter Schemel
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Patent number: 6467374Abstract: A continuously variable mechanical transmission comprised of two wheels, either friction or toothed, of which one or both are in the shape of hemispheres. A hemisphere wheel is mounted through a bearing on a fork with two pivots attached to the inner race of the bearing, allowing the wheel to rotate around two perpendicular accesses. The center of the wheel is attached to the shaft through a double universal joint or a flexible shaft. The other wheel can be a regular narrow wheel fixed to the second shaft. By rotating the hemisphere wheel around the fork pivots the diameter of the wheel engaged with the second wheel is increased or decreased allowing the transmission rate to vary.Type: GrantFiled: July 24, 2000Date of Patent: October 22, 2002Inventor: Gregory Kaplun
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Publication number: 20020124671Abstract: The invention relates to a gear transmission comprising a first shaft, an intermediate shaft which is parallel to the first shaft, a first cylindrical pinion and a second cylindrical pinion for coupling the rotation of the first shaft and the intermediate shaft, a third cylindrical pinion which can rotate with the first shaft, and a fourth cylindrical pinion which can rotate with the intermediate shaft, and a double-toothed face gear mounted between and meshing with the third and fourth cylindrical pinions.Type: ApplicationFiled: November 6, 2001Publication date: September 12, 2002Inventor: Augustinus F.H. Basstein
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Patent number: 6439101Abstract: An electro-hydraulic servomotor includes: an electric motor (41) which rotates a drive shaft (51) in response to an inputted signal; a hydraulic motor (60) which rotates an output shaft (61) using hydraulic pressure of operation oil; a first geared shaft (53) rotatable along with the output shaft (61); a second geared shaft (52) threadingly engaged with the drive shaft (51) and meshed with the first geared shaft (53); and a spool (71) axially movable along with the second geared shaft (52) depending on a rotational difference between the drive shaft (51) and the first geared shaft (53), to control supply and discharge of the operation oil to and from the hydraulic motor. (60).Type: GrantFiled: July 18, 2000Date of Patent: August 27, 2002Assignee: Teijin Seiki Co., Ltd.Inventors: Haruo Kodama, Nobuaki Shimizu, Youji Asano
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Patent number: 6289759Abstract: An actuator assembly for actuating a valve assembly having a shaft is provided. The actuator assembly includes a mounting member having a hole therethrough and a first attachment member. A first gear has a portion that extends through the hole for actuating the valve assembly. The actuator assembly also includes an actuator for driving the first gear. A second gear is interposed between the actuator and the first gear with the second gear coupled to the first gear. A carrier has a second attachment member for slidably engaging the first attachment member and securing the carrier to the mounting member. The carrier includes a cradle portion that supports the actuator and a bearing portion that supports the first gear when the carrier and mounting member are in an assembled position. In the assembled position, the cradle aligns the first and second gears with one another.Type: GrantFiled: February 7, 2000Date of Patent: September 18, 2001Assignee: Delphi Technologies, Inc.Inventor: Donald John Enzinna
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Patent number: 6260429Abstract: A face gear transmission assembly has a supporting structure, and a pair of face gears which are positioned facing each other, rotate with respect to the supporting structure about a common axis, and both mesh with two input pinions and three transmission pinions; the transmission pinions are supported by an auxiliary frame which provides for maintaining the transmission pinions equally spaced angularly, is connected to the supporting structure in angularly fixed manner about the common axis, and is movable along the common axis and at least in one direction crosswise to the common axis.Type: GrantFiled: October 15, 1999Date of Patent: July 17, 2001Assignee: Fiatavio S.p.A.Inventor: Gianluca Andrei
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Patent number: 6260430Abstract: A face gear transmission, in particular for aircraft application, has a floating input pinion rotating about a respective axis, and two face gears which are positioned facing each other, rotate about a common axis forming an angle of other than 90° with the axis of the pinion, both mesh with the input pinion, and have respective different diameters.Type: GrantFiled: October 15, 1999Date of Patent: July 17, 2001Assignee: Fiatavio S.p.A.Inventor: Gianluca Andrei
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Patent number: 6234037Abstract: A modular gear system includes a plurality of gear modules and drive modules. The gear modules and drive modules each have a cylindrical output pinion which facilitates connecting the various modules to provide a desired transmission ratio. At least one of the gear modules is an angular gear module which incorporates a contrate gear which can mesh with an output pinion of a drive module or the output pinion of another gear module.Type: GrantFiled: April 27, 2000Date of Patent: May 22, 2001Assignee: Lenze GmbH & Co KGInventor: Detmar Zimmer
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Patent number: 6183388Abstract: A gear reduction gearbox connected to a gas turbine engine to reduce the shaft speed and increase the output torque. In one form of the present invention an input shaft and an output shaft are rotatable within a mechanical housing. A face gear set connects between the shafts for changing the speed of the output shaft relative to the input shaft. The present invention, in one embodiment includes load sharing wherein a plurality of pinion gear assemblies distribute the load transmitted through the gearbox.Type: GrantFiled: March 12, 1996Date of Patent: February 6, 2001Assignee: Allison Engine Company, Inc.Inventor: John M. Hawkins
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Patent number: 6158296Abstract: A transmission (1) comprising a gear assembly for transmitting a rotary motion from a driving shaft (2) to a driven shaft (3), with variable gear ratio, the two shafts (2 and 3) not being coaxial. This transmission consists in: a gear-wheel (4) axially split into two half-gear-wheels (5 and 6) one (5) axially mobile relative to the other (6) and also relative to one of the shafts (3) supporting them, the two half-gear-wheels (5 and 6) being fixed in rotation relative to this shaft (3); a plate (7), integral with the other shaft (2), comprising, on at least one of its surfaces, several gear teeth, concentric (8 to 11) with this shaft (2), cooperating with the gear-wheel (4); and elements for axially displacing the two half-gear-wheels (5 and 6) to alter the geared concentric tooth (8 to 11), thereby shifting the gear ratio. The invention is preferably applicable to land vehicles.Type: GrantFiled: October 27, 1999Date of Patent: December 12, 2000Inventor: Raymond Denance
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Patent number: 6128969Abstract: A hybrid gear drive suitable for the transformation of motion and power between an involute worm and a face gear wherein the axis of the face gear and the worm may be crossed or intersected. The gear drive includes a multi-thread involute worm in meshing engagement with a face gear having helical teeth. The multi-thread involute worm threads each have a driving surface and a coasting surface formed in the profiles of the involutes of a pair of base circles having different radii. The gear drive allows practical gear ratios up to about ten for high speed, high load applications such as helicopter or automobile gearboxes.Type: GrantFiled: May 12, 1998Date of Patent: October 10, 2000Assignee: Board of Trustees of the University of IllinoisInventors: Faydor L. Litvin, Aleksandar Egelja, Inhwan Seol