Reversing Means Patents (Class 74/404)
  • Publication number: 20150114154
    Abstract: The front sides of pinions are rotatably supported by a first case via first taper roller bearings, and the back sides of the pinions are rotatably supported by a second case via second taper roller bearings, and the back sides of input shafts are rotatably supported by a case cover via third taper roller bearings, and clutches and input gears are stored in the case cover, and sleeves are interposed between the first taper roller bearings and the front side of the pinions, and the pinions are configured to be inserted and extracted into/from the sleeves.
    Type: Application
    Filed: December 12, 2012
    Publication date: April 30, 2015
    Applicant: YANMAR CO., LTD.
    Inventor: Yoshiaki TERASAWA
  • Publication number: 20150098728
    Abstract: A drive switching device includes a driving source and a switching unit. The driving source is rotationally driven in one direction. The switching unit is linked with the driving source such that a driving force therefrom is intermittently transmittable to the switching unit, and switches a transmission direction of the driving force from the driving source between a first direction and a second direction every time the switching unit is linked with the driving source.
    Type: Application
    Filed: June 26, 2014
    Publication date: April 9, 2015
    Inventor: Yuji HAYAKAWA
  • Patent number: 8827030
    Abstract: A gearbox for a model car, comprising: a housing; an input gear; an output gear; and at least one intermediate gear. The housing provides a support for each of the input gear, the output gear and each intermediate gear; and in which the gearbox has: a first operating configuration where the input gear, the output gear and at least one intermediate gear are supported by the supports and mesh to form a gear train from input gear to output gear through each intermediate gear supported by the supports; and a second operating configuration where the input gear and the output gear are supported on the supports but fewer intermediate gears are supported by the supports, such that the input gear, the output gear and any intermediate gears supported by the supports mesh to form a gear train from input gear to output gear through any remaining intermediate gears.
    Type: Grant
    Filed: July 11, 2012
    Date of Patent: September 9, 2014
    Assignee: Arrma Durango Ltd
    Inventor: Gerd Strenge
  • Patent number: 8777795
    Abstract: A device is provided that attaches to a hub of a drive mechanism that utilizes a flat plate, shuttle enabled, engagement/disengagement mechanism to sequentially disengage a forward drive power and then engage a reverse drive power assembly which results in a reverse output of power to the drive mechanism. In a particular application, a device is provided that attaches to the hub of a motorcycle wheel that enables the normal forward drive mechanism to provide reverse power without changing the actual direction of the drive sprocket. An important aspect of the device of the present invention is that the reverse gear package when not in use is completely idle and has absolutely no effect on the forward drive components when not in use.
    Type: Grant
    Filed: April 26, 2012
    Date of Patent: July 15, 2014
    Inventors: Phil Schwarz, Greg Schwarz
  • Publication number: 20140041998
    Abstract: A recording apparatus includes a feeding roller and a power transmission mechanism for transmitting a driving force to the feeding roller. The power transmission mechanism includes a one-way compound gear mechanism that integrally includes a first one-way gear mechanism which is engaged with a first gear rotating forwardly or reversely by receiving the driving force from the driving source, rotates together with the first gear in a forward direction by receiving the driving force from the first gear at the time of the forward rotation and rotates idly with respect to the first gear at the time of the reverse rotation, and a second one-way gear mechanism which rotates idly with respect to the first gear at the time of the forward rotation and rotates with the first gear in a reverse direction by receiving the driving force from the first gear during the reverse rotation.
    Type: Application
    Filed: August 7, 2013
    Publication date: February 13, 2014
    Applicant: Seiko Epson Corporation
    Inventors: Hidefumi MINEMURA, Tomoya TAKIKAWA
  • Publication number: 20140020489
    Abstract: A transmission mechanism has an input gear, a first intermediate gear configured to engage with the input gear. A rotation shaft of the first intermediate gear is movable between a first position and a second position along an elongated hole formed on a supporting member. A first output gear is configured to engage with the first intermediate gear when the rotation shaft is located at the first position, and a second output gear configured to engage with the first intermediate gear when the rotation shaft is located at the second position. The rotation shaft can be located at a third position which is an intermediate position between the first position and the second position, the first intermediate gear engaging with both the first output gear and the second output gear when the rotation shaft is located at the third position.
    Type: Application
    Filed: July 18, 2013
    Publication date: January 23, 2014
    Applicant: Brother Kogyo Kabushiki Kaisha
    Inventors: Takahiro Nozaki, Yasuhiro Suzuki
  • Publication number: 20130340551
    Abstract: REVERSING HUB designed and built with the purpose of providing an improvement on reversing systems performing separately from the sequential gearbox of land and aquatic motor vehicles installed separately from the original gearbox of such motor vehicles without changing the composition and functioning of the gearbox, so as to provide that the user has not only a reverse gear, but also uses all sequential forward gears in these motor vehicles as sequential reverse gears.
    Type: Application
    Filed: November 25, 2011
    Publication date: December 26, 2013
    Inventor: Laury Grandi
  • Publication number: 20130305860
    Abstract: An electric drill forward and reverse rotation automatic switching apparatus includes: a gearbox, a first-stage gear, a first-stage gear shaft, a second-stage gear, a second-stage gear shaft, a transition gear, a transition shaft, a third-stage gear, and an output shaft. The first-stage gear is fixed on the first-stage gear shaft. The second-stage gear is fixed on the second-stage gear shaft. The first-stage and second-stage gear shafts are disposed on the gearbox housing. The transition gear is disposed on the transition shaft which is fixed on the gearbox housing. The output shaft is disposed on the gearbox housing. The third-stage gear is sleeved on the output shaft and disposed on the gearbox housing. The first-stage gear shaft engages with the second-stage gear and the transition gear simultaneously. The transition gear engages with the third-stage gear. The second-stage gear shaft and the output shaft are on the same axis.
    Type: Application
    Filed: September 6, 2011
    Publication date: November 21, 2013
    Applicant: ZHENGYANG INDUSTRY & INVESTMENT CO., LTD.
    Inventor: Feihao Xu
  • Patent number: 8505404
    Abstract: A switching device includes input and output gears 14, 15, and a rotational direction switching mechanism 10 disposed between the input and output gears. The switching mechanism includes intermediate bevel gears 22 supported on an intermediate shaft 12 and meshing with input and output bevel gears 16, 17, a control gear 39 having a release arm portion 41 and a stopper arm portion 42, and a one-way clutch fitted in a radially inner surface of a clutch receiving portion integral with the input bevel gear 16. When a spring clutch 25 is used as the one-way clutch, an adaptor portion 30 is provided on a coupling member 28 of the spring clutch 25, which is fitted on the intermediate shaft 12. When a roller clutch 55 is used as the one-way clutch, an adaptor portion 57 of the same structure is provided on its inner ring 56.
    Type: Grant
    Filed: April 11, 2008
    Date of Patent: August 13, 2013
    Assignee: NTN Corporation
    Inventors: Seiichi Takada, Tsutomu Maiwa
  • Patent number: 8474345
    Abstract: A transmission having an input shaft and an output shaft, where an input gear is rotatably fixed for common rotation by the input shaft, an output gear is rotatably fixed for common rotation by the output shaft, and a third shaft is disposed generally parallel to the input and output shafts and has an outer surface that includes a splined portion and a non-splined portion. A reverse gear assembly rotatably fixed for common rotation by the third shaft includes a reverse gear, a synchronizer member, an annular retaining member, and a synchronizer spring. The reverse gear is disposed on the third shaft, and has a hub extending from a first side. The reverse gear assembly is selectively axially moveable along the third shaft to engage the input and output gears.
    Type: Grant
    Filed: August 26, 2010
    Date of Patent: July 2, 2013
    Assignee: GM Global Technology Operations LLC
    Inventors: Paulo A. Riedel, Renato Freitas Silva, Roberto Sintoni, Roberto Camargo Fo
  • Patent number: 8201479
    Abstract: A drive conversion mechanism includes a rotatably mounted output shaft, a pair of output gears mounted on the output shaft so as to rotate independent of one another and relative to the output shaft and being displaced from each other axially along the output shaft, and a pair of one-way clutches arranged about the output shaft. Each clutch is connected to one of the output gears and extends about the output shaft in respective orientations that are the reverse of each other such that the one-way clutches can only drivingly engage the output shaft at alternate times, and thus not at the same time, so as to cause the output shaft to rotate in a same single direction as the output gears are driven in opposite directions relative to each other by an input train of constantly meshed input drive and idler gears.
    Type: Grant
    Filed: April 20, 2009
    Date of Patent: June 19, 2012
    Assignee: Lexmark International, Inc.
    Inventor: William Scott Klein
  • Publication number: 20120103118
    Abstract: A detachable reversible pick mechanism for a media input tray.
    Type: Application
    Filed: October 29, 2010
    Publication date: May 3, 2012
    Inventors: Brian Allen Blair, Dustin Daniel Fichter, Derek Masami Inouye, Stacey Vaughan Mitchell, Michael James Shanor, Jeffrey Lawrence Tonges, Edward Lynn Triplett
  • Publication number: 20120048045
    Abstract: A transmission is disclosed having an input shaft and an output shaft, where an input gear is rotatably fixed for common rotation by the input shaft, an output gear is rotatably fixed for common rotation by the output shaft, and a third shaft is disposed generally parallel to the input and output shafts and has an outer surface that includes a splined portion and a non-splined portion. A reverse gear assembly rotatably fixed for common rotation by the third shaft includes a reverse gear, a synchronizer member, an annular retaining member, and a synchronizer spring. The reverse gear is disposed on the third shaft, and has a hub extending from a first side. The reverse gear assembly is selectively axially moveable along the third shaft to engage the input and output gears.
    Type: Application
    Filed: August 26, 2010
    Publication date: March 1, 2012
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.
    Inventors: Paulo A. Riedel, Renato Freitas Silva, Roberto Sintoni, Roberto Camargo Fo
  • Publication number: 20100212442
    Abstract: Modulatable marine transmission clutches including fluid operated nonrotating pistons for effecting clutch engagement by compression of the plates, the pistons generating thrust that is transferred through bearings between the modulatable pistons and the clutch packs.
    Type: Application
    Filed: November 23, 2009
    Publication date: August 26, 2010
    Inventor: George Reisch Aschauer
  • Patent number: 7757576
    Abstract: An All-Terrain Vehicle (ATV) having a transmission assembly featuring an improved gear arrangement is disclosed. The transmission assembly includes a first gear having a central opening, the first is disposed such that the axis of the fork rod of the transmission passes through the central opening of the first gear.
    Type: Grant
    Filed: December 8, 2006
    Date of Patent: July 20, 2010
    Assignee: BRP-Powertrain GmbH & Co KG
    Inventor: Fritz Einboeck
  • Publication number: 20100089193
    Abstract: The present invention relates to a propulsion mechanism provided with two independent actuators, the first actuator being connected via a first connection member CD to a first converter ED, RLD mounted on a transmission shaft AT. Further, the second actuator is connected via a second connection member CG to a second converter EG, RLG mounted on the same transmission shaft AT.
    Type: Application
    Filed: April 1, 2008
    Publication date: April 15, 2010
    Inventor: Joel Martin
  • Publication number: 20100089200
    Abstract: The invention relates to rotary units and rotary mechanisms that are suitable for use in numerous applications. Rotary units typically include rotational components that are configured to rotate. In some embodiments, for example, multiple rotary units are assembled in rotary mechanisms such that neighboring pairs of rotational components counter-rotate or contra-rotate relative to one another during operation of the rotary mechanisms. Rotational components generally include one or more implements that are structured to perform or effect one or more types of work as the rotational components rotate relative to one another in a given rotary mechanism. In certain embodiments, implements are configured to rotate and/or to effect the movement of other components as rotational components rotate.
    Type: Application
    Filed: October 12, 2009
    Publication date: April 15, 2010
    Inventor: Christopher C. Sappenfield
  • Patent number: 7685899
    Abstract: A two speed transmission including an input shaft; a lay shaft spaced from the input shaft; a first gear train connecting the input shaft to the lay shaft; a second gear train connecting the lay shaft to an output shaft, the gear train including a one way clutch or similar; and a clutch for engaging the input shaft with the output shaft. When the clutch is disengaged, power is transmitted from the input shaft via the gear trains and the lay shaft via the one way clutch to the output shaft which typically provides first or low gear for use in low speed maneuvering or where greater torque is required. With the clutch engaged, power may be transmitted from the input shaft directly to the output shaft to provide a second gear for when the watercraft is cruising.
    Type: Grant
    Filed: July 21, 2004
    Date of Patent: March 30, 2010
    Assignee: Nautitech Pty Ltd.
    Inventors: Graham Mowbray, Ric Tamba, Steve Tapper
  • Patent number: 7647851
    Abstract: The invention relates to a propulsion power transmission device having a first interface (1) and a second interface (2). According to the invention, a hydrodynamic clutch is mounted in the driving connection between the first interface and the second interface and a first gear train (4) and a second gear train (5) are mounted parallel to each other in the driving connection, in series with the hydrodynamic clutch, the second gear train (5) causing a reversal in the direction of rotation in relation to the first gear train (4) at one of the two interfaces (1, 2). The propulsion power transmission device of the invention is characterized by the following features: the hydrodynamic clutch has two separate working chambers (3.1, 3.2), which can be independently filled with and drained of a working medium in order to transfer torque from one bladed primary wheel (3.3, 3.4) to at least one bladed secondary wheel (3.
    Type: Grant
    Filed: November 27, 2004
    Date of Patent: January 19, 2010
    Assignee: Voith Turbo GmbH & Co. KG
    Inventor: Kurt Adleff
  • Publication number: 20090243186
    Abstract: A sheet feed device includes a motor that rotates in a first and second direction, a first transmitting mechanism having an upstream and a downstream portion, that transmits a rotational force in a first transmitting direction, a second transmitting mechanism having an upstream and downstream portion, that transmits the rotational force in a second transmitting direction, a first idling mechanism, and a second idling mechanism. When the motor transitions between rotating in the first direction and rotating in the second direction, the first idling mechanism allows the upstream portion of the first transmitting mechanism to perform an idle rotation with respect to the downstream portion of the first transmitting mechanism, and the second idling mechanism is configured to allow the upstream portion of the second transmitting mechanism to perform an idle rotation with respect to the downstream portion of the second transmitting mechanism.
    Type: Application
    Filed: March 27, 2009
    Publication date: October 1, 2009
    Applicant: BROTHER KOGYO KABUSHIKI KAISHA
    Inventor: Kenji SAMOTO
  • Publication number: 20090025498
    Abstract: A transmission assembly includes a shift drum operable to rotate in first and second directions. The shift drum includes a common speed change position, where both a fastest forward gear and a reverse gear are capable of becoming engaged, in such a manner that a reverse stopper arm fits at a first end of a reverse cam groove formed on the shift drum. When the shift drum is rotated in the second rotation direction, opposite to the first direction, from a state where the reverse gear is engaged, the reverse stopper arm surmounts the outer periphery of the shift drum from the first end of the reverse cam groove, without requiring the application of an external force thereto, so as to become detached and to move towards a second end of the reverse cam groove.
    Type: Application
    Filed: July 17, 2008
    Publication date: January 29, 2009
    Applicant: Honda Motor Co., Ltd.
    Inventors: Hiroshi Sotani, Kinya Mizuno, Hiromi Sumi, Seiji Hamaoka
  • Patent number: 7390280
    Abstract: The present invention provides a transmission capable of providing a forward and a reverse drive for a model vehicle. The transmission comprises a drive gear and at least one transfer gear which is capable of engaging the drive gear. The at least one transfer gear is contained within a gear housing. An output gear is coupled to an output shaft, and the output gear is capable of engaging the at least one transfer gear. The transmission also comprises a locker ring capable of receiving the output gear and a shift lever assembly which is coupled to the locker ring. The shift lever assembly is also capable of engaging the gear housing. The invention also provides a method of changing a direction of travel of a vehicle and a system for controlling a direction of travel of a vehicle.
    Type: Grant
    Filed: May 25, 2005
    Date of Patent: June 24, 2008
    Assignee: Hobbico, Inc.
    Inventors: Gregory Paul Duitsman, Richard Arlin Vessell
  • Patent number: 7258031
    Abstract: In the transmissions of the background art, two larger-diameter gears are mounted on a final shaft thereby causing an increase in weight of the transmission. The present invention reduces the weight of a transmission by mounting only one larger-diameter gear on a final shaft.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: August 21, 2007
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yoshiaki Hori, Seiji Hamaoka
  • Patent number: 6948393
    Abstract: In the transmissions of the background art, two larger-diameter gears are mounted on a final shaft thereby causing an increase in weight of the transmission. The present invention reduces the weight of a transmission by mounting only one larger-diameter gear on a final shaft.
    Type: Grant
    Filed: July 1, 2003
    Date of Patent: September 27, 2005
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Yoshiaki Hori, Seiji Hamaoka
  • Publication number: 20040187619
    Abstract: A speed change gear device is disclosed. A speed change gear box has an input gear. The lower gear is firmly secured with a gear shaft. A speed change disk is installed between two gears mounted on a gear shaft. A movable piece is placed in the annular groove of a speed change disk. A lower connecting plate is mounted at one side of the movable piece. Another end of an upper connecting plate is installed to a driving rod. Another end of the driving rod is connected to a linkage. Another end of the linkage is firmly secured to a gear switching rod. Thereby, by moving the gear switching rod, a switching rotary shaft can rotate so that the movable piece move the speed change disk. Thus the gears are switched to move forwards, move rightwards or to an idle gear.
    Type: Application
    Filed: March 29, 2003
    Publication date: September 30, 2004
    Inventor: Tun-Hung Chiang
  • Patent number: 6733052
    Abstract: A vehicle door latch has a forkbolt, a detent that holds the forkbolt in a latched position, a release mechanism that moves the detent to release the forkbolt and a lock mechanism for disabling the release mechanism. The detent is moved by an intermittent lever that is part of the release mechanism and part of the locking mechanism. A lock lever forming part of the lock mechanism moves the intermittent lever back and forth between an unlock position where the intermittent lever drives the detent to release the forkbolt and a lock position where the intermittent lever free wheels with respect to the detent. The intermittent lever is pivotally connected to an unlatching lever of the release mechanism that is operated by inside and outside release levers. The lock lever includes a lower lock lever, an upper lock lever and a spring that stores energy when the lower lock lever pivots with respect to the upper lock lever.
    Type: Grant
    Filed: December 14, 2000
    Date of Patent: May 11, 2004
    Assignee: Delphi Technologies, Inc.
    Inventors: Donald Michael Perkins, Frank Joseph Arabia, Jr., Jeffery P Laukonis
  • Publication number: 20020139206
    Abstract: A positive/reverse rotation control device comprises a shaft and at least two one-way bearings, wherein the shaft pierces simultaneously through axial apertures of the two bearing, and the two one-way bearings are mounted in opposite directions. Thus, with the shaft rotating positively (e.g., clockwise), the first bearing is to rotate positively (clockwise), and the gear assembly or tooth gage belt pivotally jointed to the first one-way bearing is to be brought to work, whereas the second one-way bearing stays still; when the shaft rotates reversely (e.g., counter clockwise), the second one-way bearing is then to be brought to rotate reversely (counter clockwise), and thus bringing the gear assembly or tooth gage belt pivotally connected to the second one-way bearing to work, whereas the first one-way bearing stays still.
    Type: Application
    Filed: March 5, 2002
    Publication date: October 3, 2002
    Applicant: Pantech International Inc.
    Inventor: Min-Shih Yang
  • Patent number: 6109626
    Abstract: A camera dolly has a steering unit which provides conventional, crab, and round steering modes, selected by the operator via use of a single steering/shifting handle. The steering unit includes first and second transmissions and a differential. Chains link sprockets on the transmissions and differential, to steer the wheels of the camera dolly to appropriate angles, so that the dolly can roll easily and without wheel scrubbing. A dolly leg position compensator adjusts the amount of steering angle correction provided by the differential, to compensate for changes in the dolly wheelbase/tread dimensions. Sprockets in the differential are locked into offset positions, during conventional and round steering, to maintain proper steering angle correction, even under heavy loads. Active idlers are mechanically linked within the steering unit to automatically maintain appropriate chain tension, in all steering modes.
    Type: Grant
    Filed: June 1, 1999
    Date of Patent: August 29, 2000
    Assignee: Chapman/Leonard Studio Equipment
    Inventor: Leonard T. Chapman
  • Patent number: 5441315
    Abstract: A power actuator used in combination with a motor-vehicle door latch movable between a locked and unlocked position has a housing, a reversible electric motor in the housing having a rotatable output shaft defining an axis, and an input gear on the shaft. A threaded output spindle spaced from the shaft in the housing carries an output gear out of mesh and out of engagement with the input gear. A nut is threaded on the spindle. An actuating element couples the nut with the latch to switch it between its positions. A support pivotal in the housing about the axis carries a pair of coupling gears in mesh with and flanking the input gear. The support is rockable about the axis from a central position in which neither of the coupling gears meshes with the output gear into a pair of end positions in each of which a respective one of the coupling gears meshes with the output gear and couples same to the input gear.
    Type: Grant
    Filed: May 26, 1993
    Date of Patent: August 15, 1995
    Assignee: Kiekert GmbH & Co. KG
    Inventors: Frank Kleefeldt, Rolf Schuler
  • Patent number: 5373752
    Abstract: A motor-vehicle power actuator has a housing, an electric motor in the housing having an output shaft, an input gear fixed on the shaft, a threaded spindle extending along and rotatable about a spindle axis in the housing, an output gear fixed on the spindle adjacent and out of contact with the input gear, and a nut threaded on the spindle and nonrotatable relative thereto. Thus rotation of the spindle in one rotational sense displaces the nut axially relative to the spindle axis in a release direction. A rocker pivotal in the housing on the shaft axis carries an intermediate gear meshing with the input gear, and also meshable with the output gear. The rocker is pivotal between an end position in which the intermediate gear meshes with the output gear and through an intermediate position in which the intermediate gear does not mesh with the output gear. The rocker and intermediate gear are so positioned that, on normal forward rotation of the motor shaft, the rocker moves into its end position.
    Type: Grant
    Filed: July 28, 1993
    Date of Patent: December 20, 1994
    Assignee: Kiekert GmbH & Co. KG
    Inventor: Ulrich Schlagwein
  • Patent number: 5276466
    Abstract: Disclosed is a recording apparatus for recording information signals on a recording sheet. The apparatus includes a conveyance mechanism for conveying the sheet, a recording head reciprocating along the sheet for performing recording thereon, a driving power source for generating a driving force rotating in one direction which is used for reciprocating the recording head and for conveying the sheet by the conveyance mechanism, and a mechanism for inhibiting the conveyance of the sheet while the recording head is moving along the recording region of the sheet. The reciprocating operation of the recording head and the conveyance operation of the sheet are effected by a single motor.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: January 4, 1994
    Assignee: Canon Kabushiki Kaisha
    Inventors: Isao Tsukada, Manabu Kanazawa, Shoushi Kikkawa
  • Patent number: 5149156
    Abstract: A power door-lock actuator has a housing adjacent the lock, a reversible electric motor in the housing having an output shaft extending along a motor axis, and an input gear fixed on the output shaft and rotatable thereby about the motor axis. A threaded spindle extending in the housing along a spindle axis adjacent the motor axis carries an output gear and a nut threaded on the spindle is movable along the spindle axis on rotation of the spindle between a pair of axially offset positions. A link connected between the nut and the lock can move the lock between its locked and unlocked positions on displacement of the nut between its end positions. A manual actuator, for instance an inside door-lock button, is coupled to the nut for manually displacing the nut between its end positions. A rocker pivotal about the shaft axia at the input gear carries a pair of connecting gears flanking and meshing with the input gear.
    Type: Grant
    Filed: December 24, 1991
    Date of Patent: September 22, 1992
    Assignee: Kiekert GmbH & Co.
    Inventor: Frank Kleefeldt
  • Patent number: 5086994
    Abstract: The present invention pertains to a gear drive assembly that will allow components that are not capable of continuous rotation to be coupled to a component that is capable of continuous rotation. The drive gear assembly includes a drive gear component which is actually comprised of two gear sectors, one used to mesh and drive a driven gear directly and the other used to drive the driven gear in a reverse direction through a reversing cluster gear arrangement. The drive gear sectors are arranged so that when one sector is coupled and driving the driven gear, the other sector is decoupled, and vice-versa. Gear jamming is prevented by properly timing the coupling and decoupling of the drive gear sectors with the driven gear and the reversing cluster gear arrangement. In addition, where gear teeth pairs clash during coupling, provision is made to allow one gear tooth of the clashing pair to deflect and allow passage of the other gear tooth to the proper position.
    Type: Grant
    Filed: October 3, 1990
    Date of Patent: February 11, 1992
    Assignee: Grumman Aerospace Corporation
    Inventors: John J. Donnelly, Bruno J. Germano
  • Patent number: 5085090
    Abstract: A rotation transmitting mechanism includes a first cylindrical body, a second cylindrical body arranged parallel to the first cylindrical body, a rotary body disposed parallel to the first cylindrical body, and circumscribed with the first and second cylindrical body, a pressing unit for pressing one of the first and second cylindrical bodies against the other of the first and second cylindrical bodies so as to make the first and second cylindrical bodies contact each other, and a moving unit for moving the rotary body toward a point where the first cylindrical body contacts the second cylindrical body so as to inhibit contact of the first cylindrical body with the second cylindrical body, and to contact the rotary body with the first and second cylindrical bodies, and for retreating the rotary body in a direction opposite to the aforementioned point so as to permit contact of the first cylindrical body with the second cylindrical body, which contact is caused by the pressing unit.
    Type: Grant
    Filed: January 24, 1990
    Date of Patent: February 4, 1992
    Assignee: Ricoh Company, Ltd.
    Inventors: Isamu Sugasawa, Hidenori Ito
  • Patent number: 4870874
    Abstract: A power transmission, particularly adapted for motorcycle application, in which a first planetary gear reduction system reduces power output from the starter motor for starting the engine and a second planetary gear reduction system operated in cooperation with the first system enables power output from the starter motor to operate the vehicle in reverse.
    Type: Grant
    Filed: October 9, 1987
    Date of Patent: October 3, 1989
    Assignee: Honda Giken Kogyo Kabushiki Kaisha
    Inventor: Toshifumi Ito
  • Patent number: 4862766
    Abstract: A device for driving a rotatable can plate of a spinning preparation machine. The device includes a drive gear, a driven gear engaged by and driven by the drive gear for rotation in a direction opposite to the direction of rotation of the drive gear, an intermediate gear mounted on a lever pivotable about an axis spaced from the axis of the intermediate gear for pivotal movement of the intermediate gear between selective alternate positions for engagement with the drive gear or the driven gear for selective driving of the intermediate gear in opposite directions of rotation, a pair of spaced pulleys driven by a belt trained around a drive pulley fixed upon the intermediate gear for transmitting the rotation of the intermediate gear to the pair of spaced pulleys, and can plate pulleys each driven by a belt trained around one of the pulleys of the pair of spaced pulleys for transmitting the rotation of the pair of pulleys to the can plate pulleys.
    Type: Grant
    Filed: September 30, 1987
    Date of Patent: September 5, 1989
    Assignee: Zinser Textilemaschinen GmbH
    Inventor: Franz Molders
  • Patent number: 4572353
    Abstract: A reversible conveyor wherein transmission of power is effected by a driving source to the conveyor, the conveyor being divided into two sections, wherein intermediate rollers are thrown from a drive position to a neutral position by a unit-load-controlled sensor in order to stop the unit load. Reversibility of the conveyor track is effected by placing in each section of the conveyor two intermediate rollers which act in opposite directions but always with only one of the intermediate rollers assuming the drive position.
    Type: Grant
    Filed: January 25, 1983
    Date of Patent: February 25, 1986
    Assignee: Gebhardt Fordertechnik GmbH
    Inventor: Christian Felder
  • Patent number: 4489623
    Abstract: An axle shaft and pump drive mechanism (12) for a vehicle (10) includes a continuously variable transmission unit (24), an axle shaft (20), a pump (22), and a coupling device (34,78) for connecting the transmission unit (24) to the axle shaft (20) or to the pump (22) and operating them individually through an infinitely variable speed ratio range. When the vehicle, such as a backhoe loader, is not being propelled, the continuously variable transmission unit (24) can be used to drive the implement pump (22) which can then be of the fixed displacement type for improved effectiveness.
    Type: Grant
    Filed: May 3, 1982
    Date of Patent: December 25, 1984
    Assignee: Caterpillar Tractor Co.
    Inventor: Peter Hakkenberg
  • Patent number: 4460075
    Abstract: A reversing drive unit used in association with a clutch/brake unit and a motor driven in only one direction comprising a first shaft, a housing around at least a portion of the shaft with a second shaft extending from a position interior the housing to a position exterior of the housing, a gear disposed at the end of the second shaft engageable with one or the other of a first and second annular gears disposed on and coaxially encircling the axis of the first shaft, and a mechanism to engage one or the other of the annular gears, with the second shaft gear moving the gears between a first position for affecting engagement of the first annular gear with the second shaft gear to provide relative rotation between the second shaft and the first shaft in one direction and a second position for affecting engagement of the second annular gear with the second shaft gear to provide relative rotation between the second shaft and the first shaft in a second direction opposite to said first direction.
    Type: Grant
    Filed: May 24, 1982
    Date of Patent: July 17, 1984
    Assignee: Sommer Co.
    Inventor: Gordon M. Sommer
  • Patent number: 4440324
    Abstract: A dispensing gun of the type holding a cartridge to push a substance out of it and characterized by using a longitudinally arc-shaped cartridge for a more compact operation and construction, by conveniently using a wheel drive to provide improved leverage or multiplication of the force deployed by the user, and by providing more steady piston pressure and dispensing an effortless retraction of the piston under spring action. This dispensing gun includes a longitudinally arc-shaped cartridge chamber, a piston with a similarly arc-shaped piston rod, a pawl and ratchet assembly to provide stepwise advance of the piston, a hand-controlled actuation assembly connected to the ratchet wheel and piston to push the piston against the movable bottom of the cartridge, and a spring to retract the piston upon release of the pawl and ratchet assembly.
    Type: Grant
    Filed: June 4, 1982
    Date of Patent: April 3, 1984
    Inventor: Maurice Lebecque
  • Patent number: 4423645
    Abstract: A spinner for turning a well drilling kelly or the like and including a member connectible to the kelly to drive it rotatively, a reversible motor, and a drive between the rotor of the motor and said member including two gears for driving the member in opposite directions respectively, with the two gears being mounted by threaded connections for axial movement between active driving positions and retracted non-driving positions. Rotation of the motor acts by virtue of a threaded connection or connections to shift one of the gears to its active driving position to turn the driven member in a first direction, while retaining the second of the gears in its retracted position. Rotation of the motor in the opposite direction acts to shift the second of the gears to active position driving the member in its second direction while retracting the first of the gears to its inactive position.
    Type: Grant
    Filed: June 10, 1981
    Date of Patent: January 3, 1984
    Assignee: Varco International, Inc.
    Inventors: Roderick K. Abbott, Padmasiri D. Seneviratne, Joseph A. R. Picard
  • Patent number: 4382683
    Abstract: In a rotary drum mixing machine of the kind in which the drum is rotated in opposite directions to mix and eject its contents respectively by a prime-mover operating through driving and driven means on a prime-mover driven shaft and the closed end of the drum respectively, reversal of the direction of rotation of the drum can be effected without reversing the prime-mover by a pivotally mounted pair of gear wheels which are continuously driven in opposite directions by the prime-mover and are alternately movable into operative engagement with the driving means for the drum.
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: May 10, 1983
    Inventor: Thomas J. Teagle
  • Patent number: 4344337
    Abstract: A reduction and reversing gear for marine propulsion systems making use of the clutch case of a conventional reduction and reversing gear of a type having an input shaft mounted on an upper part of the clutch case, an output shaft extending in parallel with the input shaft and mounted on a lower part of the clutch case, a multiple disc clutch carried by the input shaft, a small gear rotatably carried by the input shaft and adapted to be connected to and disconnected from the latter by the multiple disc clutch, and a large gear carried by the output shaft and engaging the small gear. A planetary gear type reduction gear is disposed in the space around the output shaft and below the multiple disc clutch to make an efficient use of that space, thereby to provide an additional reduction stage between the large gear and the output shaft.
    Type: Grant
    Filed: November 13, 1979
    Date of Patent: August 17, 1982
    Assignee: Yanmar Diesel Engine Co., Ltd.
    Inventors: Michisuke Nagasaki, Kinichi Aso
  • Patent number: 4324010
    Abstract: A drive unit for adjustable beds, such as hospital beds and the like, of the type which have movable head and foot sections, and/or other adjustment functions, comprises a single, unidirectional, rotary motor, and a drive shaft for each adjustable bed function. A pair of drive wheels are rotatably mounted on each of the drive shafts, and are rotated thereon in opposite directions by the motor. A pair of spring clutches are operably associated with each pair of drive wheels, and alternatively engage or connect selected drive wheels with their associated shafts to rotate the shafts, and thereby adjust the position and/or configuration of the bed.
    Type: Grant
    Filed: May 6, 1980
    Date of Patent: April 13, 1982
    Assignee: Joerns Furniture Company
    Inventors: Don M. Houlberg, Larry D. Anderson, Frank M. Damico
  • Patent number: 4296645
    Abstract: A three speed powershift gear transmission includes a torque converter mounted on the input shaft and driven by a fluid actuated modulating clutch to provide fine speed control in two output speed ranges, direct drive in a higher speed range and a reversing drive provided by a duplex planetary gear set. A single countershaft mounts the driven gears of the three speed ranges. The first or lowest speed driven gear is mounted on an overrunning clutch and the second driven gear is connectable to the countershaft by a fluid actuated clutch. The direct drive or third gear is fixed to the countershaft and is drivingly engaged to the input shaft through a fluid actuated clutch. The duplex planetary gear includes a friction clutch responsive to axial gear reaction forces to lock the ring gear to the planet gear carrier in forward drive and a fluid actuated brake for arresting rotation of the ring gear to provide reverse rotation of the planet gear carrier and the transmission output shaft.
    Type: Grant
    Filed: September 14, 1979
    Date of Patent: October 27, 1981
    Assignee: Cooper Industries, Inc.
    Inventor: James J. Jameson
  • Patent number: 4242920
    Abstract: A marine reversing gearing having a drive shaft, a forward clutch, a forward pinion coaxially arranged with respect to the drive shaft and capable of being coupled therewith by means of the forward clutch for forward travel. Two intermediate gears continuously mesh with the forward pinion, there also being provided two intermediate pinions which are rigidly connected with a respective one of the intermediate gears. A large gear continuously meshes with both intermediate pinions. There are also provided a reverse clutch and a rearward pinion which is coaxially arranged with respect to the drive shaft and can be coupled therewith by the reverse clutch for rearward travel, and two reversing pinions are driven by the rearward pinion. The intermediate gears meshing with the forward pinion exclusively transmit power as forward gears during the forward travel.
    Type: Grant
    Filed: September 13, 1978
    Date of Patent: January 6, 1981
    Assignee: Maag Zahnrader & Maschinen AG
    Inventor: Hans Sigg
  • Patent number: 4191063
    Abstract: A servo device is disclosed intended for amplifying the force in a mechanical control apparatus, movable in two opposite directions when said apparatus is displaced in either direction, comprising two gears rotatably disposed in a housing and coaxial with a rotatable shaft. The gears are driven in counter-rotation by a conical pinion or by two counter-rotating cylindrical pinions in driving relation to a rotatable servo motor. A nut is screwably arranged on screw splines on the shaft between the gears. When screwed along said splines, the nut comes into frictional contact via annular friction surfaces with corresponding annular surfaces on the gears. The nut, the splines and one of the gears make a releasable driving connection with each other. Radially directed arms are attached to the shaft and the nut with control cable attachment means for transmitting the input operating force to one arm while an additional force is contributed from either gear via the shaft and splines to the other arm.
    Type: Grant
    Filed: October 6, 1977
    Date of Patent: March 4, 1980
    Assignee: AB Volvo Penta
    Inventor: Kjell-Idar Borgersen
  • Patent number: 4188833
    Abstract: A transmission is disclosed for use in ship drive arrangements. The transmission comprises a gear train having three main axes inclined and in parallel with respect to each other. The gear wheels of the gear train are selectively coupled to the main axes to transfer motive power from the input side of the transmission to the output side. The system affords space saving arrangements depending on the type of motor that is employed for the drive assembly.
    Type: Grant
    Filed: December 28, 1977
    Date of Patent: February 19, 1980
    Assignee: Zahnradfabrik Friedrichshafen AG
    Inventors: Siegfried Krauss, Gerhard Maurer
  • Patent number: 4186618
    Abstract: A mechanism for selectively and/or automatically decelerating and positively reversing the normal direction of rotation of a rotatable shaft is provided. The mechanism includes a member which is meshingly engaged to a shaft driven by a one-way drive, such as the input shaft of a change gear transmission driven by a Diesel engine, and is operable to decelerate the shaft and positively rotate the shaft in the opposite direction of rotation.
    Type: Grant
    Filed: August 5, 1977
    Date of Patent: February 5, 1980
    Assignee: Eaton Corporation
    Inventor: Elmer A. Richards
  • Patent number: 4137789
    Abstract: A drive assembly for a cassette tape recorder having a motor driven driving pinion and an intermediate gear permanently engaged with the driving pinion and being adjustable in positions to alternatively engage a feed spool or a take up spool.
    Type: Grant
    Filed: June 24, 1977
    Date of Patent: February 6, 1979
    Assignee: Magnetronic Gesellschaft fur elektronischmechanische Gerate mbH & Co., Entwicklungs-KG
    Inventor: Karl Herleth