Plural Take-off Shafts Patents (Class 74/15.2)
  • Patent number: 9759267
    Abstract: Technology is provided for a torque limiting clutch for use with a robot arm. The torque limiting clutch includes a hub including a hub flange and a clamp plate slideably mounted on the hub. A drive member is rotatably mounted on the hub between the hub flange and the clamp plate. The drive member includes a plurality of gear teeth disposed around an annular clutch disc. A first friction disc is positioned between the hub flange and the annular clutch disc, and a second friction disc is positioned between the clamp plate and the annular clutch disc. A plurality of clamp fasteners extend through the hub flange and engage the clamp plate to exert a clamping force operative to urge the clamp plate toward the hub flange, thereby pressing the friction discs against the annular clutch disc in order to transfer torque between the gear teeth and the hub.
    Type: Grant
    Filed: July 9, 2015
    Date of Patent: September 12, 2017
    Assignee: Facebook, Inc.
    Inventor: Scott C. Wiley
  • Patent number: 9476459
    Abstract: A coupling shaft assembly system is disclosed. A coupling shaft assembly system may have a coupling shaft spline lock body having spline lock spline teeth, a main coupling shaft body having input spline teeth, and a locking bolt, wherein the locking bolt retains the coupling shaft spline lock body in substantially fixed communication with the main coupling shaft body, wherein the coupling shaft spline lock body retains the coupling shaft assembly system in mechanical communication with a power shaft. In this manner, a coupling shaft assembly system may reduce the axial forces transferred by the coupling shaft assembly system.
    Type: Grant
    Filed: January 7, 2014
    Date of Patent: October 25, 2016
    Assignee: HAMILTON SUNDSTRAND CORPORATION
    Inventor: Glenn Lemmers, Jr.
  • Patent number: 9056548
    Abstract: Systems and methods are disclosed for improving operability of a work vehicle. In accordance with one implementation, a work vehicle is disclosed. The work vehicle includes a first PTO shaft and a second PTO shaft, the first and second PTO shafts being removably mounted to a vehicle body rear structure and fitted to a power receiving unit on an implement side. The work vehicle also includes a PTO drive mechanism comprising a PTO transmission mechanism, the PTO drive mechanism transmitting rotational power from a power source to the first PTO shaft, and a storage unit storing the second PTO shaft. The work vehicle further includes a PTO transmission operation lever allowing a transmission operation to be performed on the PTO transmission mechanism, wherein the PTO transmission operation lever and the storage unit are provided in the vehicle body rear structure.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: June 16, 2015
    Assignee: ISEKI & CO., LTD.
    Inventors: Tomoo Kiyokawa, Noboru Sagawa, Fumiaki Nishikawa, Tatsuzo Murakami
  • Patent number: 8973465
    Abstract: A gearbox for a gas turbine engine includes a housing that includes first and second housing portions interconnected by an intermediate housing portion to provide a generally U-shaped structure. Each of the first and second housing portions includes opposing first and second faces. The second faces of the first and second housing portions are adjacent to one another. First and second gear sets are respectively arranged in the first and second housing portions. A third gear set is arranged in the intermediate portion and is coupled to the first and second gear sets. Accessory drive component mounts are provided on at least three of the first and second faces of the first and second housing portions. The mounts are each configured to support an accessory drive component coupled to one of the first and second gear sets.
    Type: Grant
    Filed: July 20, 2012
    Date of Patent: March 10, 2015
    Assignee: United Technologies Corporation
    Inventor: Hung Duong
  • Publication number: 20140076073
    Abstract: Systems and methods are disclosed for improving operability of a work vehicle. In accordance with one implementation, a work vehicle is disclosed. The work vehicle includes a first PTO shaft and a second PTO shaft, the first and second PTO shafts being removably mounted to a vehicle body rear structure and fitted to a power receiving unit on an implement side. The work vehicle also includes a PTO drive mechanism comprising a PTO transmission mechanism, the PTO drive mechanism transmitting rotational power from a power source to the first PTO shaft, and a storage unit storing the second PTO shaft. The work vehicle further includes a PTO transmission operation lever allowing a transmission operation to be performed on the PTO transmission mechanism, wherein the PTO transmission operation lever and the storage unit are provided in the vehicle body rear structure.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 20, 2014
    Inventors: Tomoo Kiyokawa, Noboru Sagawa, Fumiaki Nishikawa, Tatsuzo Murakami
  • Patent number: 8573376
    Abstract: A motor vehicle gearbox having a hydrodynamic retarder (12) and at least one connection (23) for a power take-off drive. The retarder (12) can be driven by an output shaft (5) of the gearbox (1) via a spur gear stage (11) having a drive gear (9) and an output gear (10). The drive gear (9) engages with at least one further output gear (13) by which at least one further power take-off drive (17, 21) can be driven.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: November 5, 2013
    Assignee: ZF Friedrichshafen AG
    Inventors: Gerhard Buri, Bernhard Grupp
  • Patent number: 8561490
    Abstract: A farm vehicle power take-off device, in particular for a tractor, wherein an output shaft is connected selectively by a drive to a first and second input shaft rotating at different speeds. The selective connection is made by moving a selector sleeve between three settings, in a first and second of which, the output shaft is connected to the first shaft to rotate at a first and second angular speed respectively, and, in a third of which, the output shaft is connected to the second shaft to rotate at a third angular speed different from the first and second angular speed.
    Type: Grant
    Filed: April 13, 2008
    Date of Patent: October 22, 2013
    Assignee: CNH America LLC
    Inventors: Giancarlo Benassi, Ivan Tioli
  • Publication number: 20130269456
    Abstract: A modular, multi-unit power take-off assembly for an all-terrain vehicle (ATV) having an internal combustion engine with an engine casing and an exposed engine shaft. The multi-unit power take-off assembly is variably formed from one or more power take-off units, or modules, that are stackable in various desired arrangements. The first power take-off assembly in the stack may be a generator assembly for driving electric implements. The generator assembly mechanically connects to the engine casing and has a rotor with an ATV-side drive connector that mates with the engine shaft and a carry-forward drive connector that mates with a next-in-sequence power take-off unit that, for example, consists of another generator assembly or a hydraulic pump for driving hydraulic implements, or both.
    Type: Application
    Filed: April 11, 2013
    Publication date: October 17, 2013
    Inventor: Kirk Jones
  • Publication number: 20130193688
    Abstract: An accessory box for a gas turbine engine has an input gear to be driven by an input shaft. The input gear is engaged to drive a first driven gear on one radial side of a drive axis of the input gear. The first gear drives at least a second driven gear on one radial side of the drive axis, with at least one accessory driven by one of the first and second driven gears. The second driven gear drives a bevel gear arrangement to drive a third driven gear on an opposed side of the drive axis of the input gear. The third driven gear drives at least a second accessory. The accessories are associated with a gas turbine engine.
    Type: Application
    Filed: January 29, 2012
    Publication date: August 1, 2013
    Inventors: Hung Duong, Gabriel L. Suciu, Christopher M. Dye
  • Patent number: 8438949
    Abstract: A rotator drive connection for a gas turbine engine accessory box has a shaft connected to be driven by a main shaft in a gas turbine engine through a gear train. A first drive connection allows selective drive of the shaft. A biased drive member includes a second drive connection selectively brought into contact with the first drive connection to allow rotation of the main shaft. The biased drive member biases the second drive connection out of contact with the first drive connection. A gas turbine engine accessory box and a method of borescopic inspection are also disclosed and claimed.
    Type: Grant
    Filed: August 2, 2010
    Date of Patent: May 14, 2013
    Assignee: Hamilton Sundstrand Corporation
    Inventors: Keith E. Short, Jeff A. Brown
  • Patent number: 8161833
    Abstract: A power take-off device for an agricultural vehicle, in particular a tractor, wherein an input shaft is connected to a first and, selectively, a second output shaft by moving a sleeve-type selector between three selection positions, in the first of which, the input shaft is connected angularly to the first output shaft to rotate the first output shaft at a first speed, and in the second and third of which, the input shaft is connected angularly to the second output shaft to rotate the second output shaft at a second speed and a third speed, different from the second speed.
    Type: Grant
    Filed: April 12, 2008
    Date of Patent: April 24, 2012
    Assignee: CNH America LLC
    Inventors: Giancarlo Benassi, Ivan Tioli
  • Patent number: 8069741
    Abstract: A split shaft transfer case includes a first housing portion and a second housing portion that are secured together along a plane of engagement to form an enclosure. An input shaft and an output shaft that are each supported for rotation about an axis of rotation that is generally parallel to the plane of engagement defined by the first and second housing portions. A first operating shaft is supported for rotation about an axis of rotation, and a first operating clutch selectively connects the first operating shaft to the input shaft for rotation therewith. A second operating shaft supported for rotation about an axis of rotation, and a second operating clutch selectively connects the second operating shaft to the input shaft for rotation therewith. The axis of rotation of at least one of the first and second operating shafts is movable relative to the axis of rotation of the input and output shafts.
    Type: Grant
    Filed: March 30, 2007
    Date of Patent: December 6, 2011
    Assignee: Parker-Hannifin Corporation
    Inventors: Mark A. Bordwell, William J. Douglass
  • Patent number: 7775134
    Abstract: The invention relates to four wheel drive switching device of a tractor which use the hydraulic pressure to move a sliding gear of the devices, and the four wheel drive switching device is controlled by means of one-touch button operation of a user. The four wheel drive switching device has a rear wheel drive shaft, a second drive gear, a third drive gear, a sliding gear, a hydraulic flow path, a cylinder room, a return spring and a front wheel drive gear. The hydraulic pressure force is acted on the sliding gear through the flow path, and the sliding gear is moved to one side, and the hydraulic pressure force holds the third drive gear to remain power transmission state.
    Type: Grant
    Filed: June 24, 2005
    Date of Patent: August 17, 2010
    Assignee: Daedong Industrial Co., Ltd.
    Inventor: Myung-Jae Lim
  • Publication number: 20090293652
    Abstract: An apparatus comprising a power take-off shaft includes an outer shaft and an inner shaft. The outer shaft includes an outer periphery and an inner periphery. The inner shaft includes an outer periphery and an inner periphery. A notch is configured around at least a portion of the outer periphery of the inner shaft, and a self-lubricating material is disposed on at least a portion of the notch.
    Type: Application
    Filed: May 28, 2008
    Publication date: December 3, 2009
    Inventor: Warren D. Williamson
  • Patent number: 7600594
    Abstract: A quick connect power take-off assembly adapted for an all-terrain vehicle (ATV). The quick connect power take-off assembly includes a housing, a driving assembly that is fixedly mounted to the ATV, a driven assembly that is releasably connected to the driving assembly, and either directly to an implement or to a power transfer assembly. The power transfer assembly includes a rotationally-driven power transfer assembly and a second slip joint coupler connected to the input shaft of the power transfer assembly, and a quick connect plate on the engine-facing side of the rotationally-driven power transfer assembly. The quick connect plate is releasably connected to the power transfer assembly on an outwardly facing side and releasably connected to the second slip joint coupler on an engine-facing side thereof. The power transfer assembly is axially engaged with the engine shaft and receives rotational energy there from.
    Type: Grant
    Filed: May 2, 2007
    Date of Patent: October 13, 2009
    Inventor: Kirk Jones
  • Publication number: 20090188334
    Abstract: Accessory gearboxes and related gas turbine engine systems are provided. In this regard, a representative accessory gearbox for a gas turbine engine is operative to be driven by rotational energy extracted from the gas turbine engine and imparted to the gearbox by multiple tower shafts.
    Type: Application
    Filed: January 25, 2008
    Publication date: July 30, 2009
    Applicant: UNITED TECHNOLOGIES CORP.
    Inventors: Brian D. Merry, Gabriel L. Suciu, Christopher M. Dye, Michael E. McCune
  • Publication number: 20080250885
    Abstract: A power take-off device for an agricultural vehicle, in particular a tractor, wherein an input shaft is connected to a first and, selectively, a second output shaft by moving a sleeve-type selector between three selection positions, in the first of which, the input shaft is connected angularly to the first output shaft to rotate the first output shaft at a first speed, and in the second and third of which, the input shaft is connected angularly to the second output shaft to rotate the second output shaft at a second speed and a third speed, different from the second speed.
    Type: Application
    Filed: April 12, 2008
    Publication date: October 16, 2008
    Applicant: CNH AMERICA, LLC
    Inventors: Giancarlo BENASSI, Ivan TIOLI
  • Publication number: 20080141799
    Abstract: A firefighting pump transmission for use with an emergency vehicle pump comprising a PTO gear affixed to a drive shaft of the transmission and an impeller clutch driving gear affixed to the drive shaft adjacent the PTO gear. The clutch driving gear may couple with a multi-disk clutch to turn an impeller shaft. The transmission allows for changing the gearing of the PTO without affecting the ratio or speeds of the impeller driving mechanism, and vice versa. The dual gears on the drive shaft accommodate compatibility with a Commercially Available PTO device to be mounted to the housing of the transmission to power a variety of devices.
    Type: Application
    Filed: December 14, 2007
    Publication date: June 19, 2008
    Inventors: Douglas W. Seitz, Michael C. Ruthy
  • Publication number: 20080047376
    Abstract: With a two-shaft engine, the accessory drive gearbox (5) for the operation of a generator and other auxiliaries (6) is connected to the high-pressure shaft (1) via a high-pressure shaft gearbox (3), which is coupled to a low-pressure shaft gearbox (8) connecting to the low-pressure shaft (7), via an overrunning clutch (11), a conical-pulley variable transmission (10) settable on the basis of the shaft speed on both sides, and a first switchable clutch (9). Under certain operating conditions with low speed of the high-pressure shaft or in case of engine failure, the power of the low-pressure shaft, with the clutch (9) engaged, is transferred to the high-pressure shaft gearbox and hence to the accessory drive gearbox via the conical-pulley variable transmission, which compensates for shaft speed difference, and the overrunning clutch, in order to reliably further operate the generator and other accessories with low fuel consumption or by windmilling only.
    Type: Application
    Filed: August 22, 2007
    Publication date: February 28, 2008
    Inventor: Gideon Venter
  • Patent number: 7284625
    Abstract: A quick connect power take-off assembly adapted for an all-terrain vehicle (ATV). The quick connect power take-off assembly includes a housing, a driving assembly that is fixedly mounted to the ATV, a driven assembly that is releasably connected to the driving assembly, and either directly to an implement or to a power transfer assembly. The power transfer assembly includes a rotationally-driven power transfer assembly and a second slip joint coupler connected to the input shaft of the power transfer assembly, and a quick connect plate on the engine-facing side of the rotationally-driven power transfer assembly. The quick connect plate is releasably connected to the power transfer assembly on an outwardly facing side and releasably connected to the second slip joint coupler on an engine-facing side thereof. The power transfer assembly is axially engaged with the engine shaft and receives rotational energy there from.
    Type: Grant
    Filed: October 22, 2004
    Date of Patent: October 23, 2007
    Inventor: Kirk Jones
  • Patent number: 7282003
    Abstract: A vehicle powertrain includes an engine connected to an input torque device including a torque isolator. A plurality of intermeshed accessory drive gears are connected to the torque device for driving accessories. A hybrid electromechanical transmission is connected to one of the accessory drive gears. A motor/generator of the hybrid electromechanical transmission is operable to drive the accessory drive gears when the engine is not running.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: October 16, 2007
    Assignee: General Motors Corporation
    Inventors: Donald Klemen, Michael R. Schmidt
  • Patent number: 6805018
    Abstract: A gearbox containing two shafts connected internally causing the shafts to operate at different speeds. One shaft has a 21-spline female connection on one end with a 21-spline male connection on the other end. The other shaft has a 6-spline female connection on one end with a 6-spline male connection on the other end. The female end of one shaft can connect to the standard 1000-RPM power take-off shaft of a power unit. Alternatively, the female end of the other shaft can be connected to the standard 540-RPM power take-off shaft of a power unit. The output shafts operate at two different speeds; one at 540-RPM and the other at 1000-RPM. These output shafts connect to the standard 6-spline/21-spline female connection on driven equipment. By connecting the driven equipment to the matching spline shaft, the driven equipment will operate at the proper speed. It also provides capability to drive two units concurrently with one power unit.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: October 19, 2004
    Inventor: Chester William Chattin
  • Patent number: 6659209
    Abstract: A tractor having a mid-mount type mower includes a pair of frames extending in a fore and aft direction, and a transmission case extending and supported between the pair of frames. The transmission case houses a power take off clutch disposed above a rear wheel differential. A change speed gearing mechanism is disposed between a front surface of the transmission case and the rear wheel differential. With such an arrangement of the components, the transmission case has a reduced length in the fore and aft direction.
    Type: Grant
    Filed: September 25, 2002
    Date of Patent: December 9, 2003
    Assignee: Kubota Corporation
    Inventors: Masashi Osuga, Takashi Yoshii, Hiroshi Shimada
  • Patent number: 6598496
    Abstract: An electro-mechanical interface incorporated in a series hybrid auxiliary power unit. According to the present invention the electro-mechanical interface employs a first tier of geared output shafts rotatably supported within a frame and meshingly engaged in a daisy-chain configuration having first and second ends. One end of the first tier of geared output shafts in the daisy-chain configuration meshingly engages a first, geared transfer shaft. The first, geared transfer shaft selectively connects to an internal combustion engine through a selectively disengageable clutch. The other end of the aforesaid first tier of geared output shafts in the daisy-chain configuration meshingly engages a second geared transfer shaft that is continuously connected to a motor/generator. The geared output shafts in the aforesaid daisy-chain configuration are available to drive auxiliary loads. A second tier of geared output shafts are also rotatably supported within the frame.
    Type: Grant
    Filed: March 19, 2001
    Date of Patent: July 29, 2003
    Assignee: General Motors Corporation
    Inventor: Brian L. Pannell
  • Patent number: 6553759
    Abstract: The present invention is so designed that a housing of a transmission which can drive front wheels and rear wheels and a power take-off shaft is constructed having a first chamber and a second chamber. A hydrostatic transmission is housed in the first chamber. A gear-type speed changing unit is housed in the second chamber. A hydraulic pump and a hydraulic motor are separately disposed on the inner and outer surfaces of the front wall of the first chamber. A clutch mechanism for engaging or disengaging with or from the front wheels for supplying power thereto is also provided. On the housing is provided a restraint mechanism for restraining rearward acceleration more than a predetermined speed by a speed control lever of the hydrostatic transmission when the gear-type speed changing unit is switched to the high speed setting.
    Type: Grant
    Filed: May 22, 2001
    Date of Patent: April 29, 2003
    Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.
    Inventor: Mizuya Matsufuji
  • Patent number: 6401848
    Abstract: A PTO assembly that supplies rotational motion to at least one piece of equipment used in conjunction with a power source. The power source can be mounted on a work vehicle or in a power station. The PTO assembly is coupled to the output shaft of the power source and comprises a PTO housing with an input shaft and an output shaft rotatably mounted in the housing in a spaced apart parallel relationship. Each shaft has mounted on it three gears with corresponding gears on each shaft intermeshed. The input shaft has the three fixed drive gears. The output shaft has a high gear ratio gear and an intermediate gear ratio gear mounted to freewheel until engaged to the output shaft by a splined shift hub moved by a single shift fork. The output shaft also has a low gear ratio gear mounted on an overrunning clutch which allows the low driven gear to freewheel when either of the high driven gear or the intermediate driven gear is engaged to the output shaft.
    Type: Grant
    Filed: October 26, 1999
    Date of Patent: June 11, 2002
    Inventor: Thomas H. Vu
  • Publication number: 20020066324
    Abstract: A transfer drive gear is provided at the rear end of a hollow counter shaft disposed under an input shaft. A reduction driven gear is provided at the rear end of a front drive shaft inserted in the counter shaft. The transfer drive gear and the reduction driven gear are engaged with a transfer driven gear which is integrally formed with an intermediate output shaft and a reduction drive gear. The rear end side of the intermediate output shaft is coupled with the front end side of a rear drive shaft through a torque coupling device, so that an FF based on the four-wheel drive vehicle can be formed.
    Type: Application
    Filed: September 13, 2001
    Publication date: June 6, 2002
    Applicant: Fuji Jukogyo Kabushiki Kaisha
    Inventor: Kazuo Kanazawa
  • Patent number: 6318485
    Abstract: A tractor having a mid-mount type mower includes a pair of frames extending in a fore and aft direction, and a transmission case extending and supported between the pair of frames. The transmission case houses a power takeoff clutch disposed above a rear wheel differential. A change speed gearing mechanism is disposed between a front surface of the transmission case and the rear wheel differential. With such an arrangement of the components, the transmission case has a reduced length in the fore and aft direction.
    Type: Grant
    Filed: November 19, 1998
    Date of Patent: November 20, 2001
    Assignee: Kubota Corporation
    Inventors: Masashi Osuga, Takashi Yoshii, Hiroshi Shimada