Power Take-off Patents (Class 74/11)
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Publication number: 20100062891Abstract: A vehicle drive train for transferring torque to first and second sets of wheels includes a first driveline adapted to transfer torque to the first set of wheels and a first power disconnection device. A second driveline is adapted to transfer torque to the second set of wheels and includes a second power disconnection device. A hypoid gearset is positioned within one of the first driveline and the second driveline in a power path between the first and second power disconnection devices. The hypoid gearset is selectively disconnected from being driven by either of the first driveline and the second driveline when the first and second power disconnection devices are operated in a disconnected, non-torque transferring, mode.Type: ApplicationFiled: September 3, 2009Publication date: March 11, 2010Inventors: Todd EKONEN, Bradley LARKIN
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Publication number: 20090241702Abstract: A work vehicle including: a body frame; an engine supported by the body frame through an elastic body; a belt transmission mechanism connected to an output shaft of the engine in a power transmissive manner; and a power takeoff (PTO) mechanism connected to the belt transmission mechanism in a power transmissive manner to take out power from the engine. A PTO support bracket configured to support the PTO mechanism is attached to the engine.Type: ApplicationFiled: March 5, 2009Publication date: October 1, 2009Applicant: Kubota CorporationInventors: Masashi Osuga, Shoko Koda, Hironobu Nishihara, Takashi Kuramoto, Satoshi Ogata, Hiroshi Kawabata
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Publication number: 20090229386Abstract: A PTO engagement assembly comprising an electric motor mechanically connected to a lever arm through a set or series of gears. The electric motor turns both forward and backward, causing the lever arm to move forward and backward as well. A cable looped around the end of the lever arm (or otherwise connected or fastened to the lever arm at some point along the lever arm) moves inward or outward as the lever arm moves. The electric motor may controlled by an electric switch. Mounting holes and brackets may be used to fasten the PTO engagement assembly to the mower.Type: ApplicationFiled: March 11, 2009Publication date: September 17, 2009Inventor: DENNIS BRANDON
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Publication number: 20090223312Abstract: The present invention can easily determine a specification which includes a PTO clutch mechanism or a specification which includes no PTO clutch mechanism. According to the present invention, in a tractor which detachably mounts a PTO portion on a transmission portion, a PTO clutch mechanism is arranged in the inside of the PTO portion. Accordingly, it is possible to easily determine the specification which includes the PTO clutch mechanism or the specification which includes no PTO clutch mechanism depending on whether the PTO clutch mechanism is preliminarily assembled in the PTO portion or not in a stage that the PTO portion is assembled and, at the same time, it is possible to easily complete the assembling by merely mounting the PTO portion on the transmission portion. Further, by taking steps opposite to the above-mentioned steps, it is possible to easily perform the maintenance of the PTO clutch mechanism or the like.Type: ApplicationFiled: September 30, 2005Publication date: September 10, 2009Applicant: Yanmar Co., Ltd.Inventor: Tatsuo Yamaguchi
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Publication number: 20090173600Abstract: In the case of a centrifugal ejector with a centrifugal wheel which has at least one ejection lever, is mounted in a housing having an ejection opening and can be driven such that it rotates, the at least one ejection lever is fixed pivotably on the centrifugal wheel, and a mechanism is provided for changing of the pivoting angle of the ejection lever as a function of the angle of rotation of the centrifugal wheel.Type: ApplicationFiled: April 11, 2007Publication date: July 9, 2009Inventors: Hermann Jun Niederer, Manuel Niederer, Alexander Niederer
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Publication number: 20090173174Abstract: This invention relates generally to sprayed insulation application systems, and more particularly to systems that utilizes a sole power source to directly or indirectly drive the system's multiple components independent of the location of a power-take-off. In one embodiment of the invention, the system utilizing a sole power source comprises at least one power-take-off operably associated with the power source. An insulation blower and a hydraulic drive are operably associated with the at least one power-take-off. An electrical generator and a vacuum fan are operably associated with the hydraulic drive, with at least one control regulating the operable association of the generator and the vacuum fan with the hydraulic drive. In another embodiment of the invention, the hydraulic drive is operably associated with the power-take-off, with the generator, vacuum fan and insulation blower operably associated with the hydraulic drive.Type: ApplicationFiled: March 10, 2009Publication date: July 9, 2009Inventor: Thomas J. Fellinger
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Publication number: 20090114045Abstract: A power take-off assembly for transmitting rotary power includes an impeller shaft connected driveably to a power source, a housing having an opening through a wall of the housing, a pinion secured to the impeller shaft, located in the housing, aligned with the opening, and supported for rotation about an axis, and a first power takeoff idler gear including a first idler gear portion meshing with the pinion, aligned with the opening, and including a first pin extending from a side of the first idler gear portion; a second idler gear portion coaxial with the first idler gear portion, rotatable relative to the first idler gear portion, meshing with the pinion, aligned with the opening, and including a second pin extending from a side of the second idler gear portion toward the first idler gear portion; and an arcuate spring located between said first and second idler gears, and including first and second angularly spaced ends, the first end contacting the first pin and the second end contacting the second pin.Type: ApplicationFiled: November 1, 2007Publication date: May 7, 2009Inventors: Brian Wilson, Kenneth L. Nowaczyk
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Publication number: 20090107448Abstract: An aggregate carrier is provided for an internal combustion engine of a motor vehicle that serves to connect motor vehicle aggregates to the internal combustion engine and for this purpose includes, but is not limited to a first mount to be connected to the internal combustion engine. The first mount is realized in such a way that a force can be exerted upon the internal combustion engine in a first mounting direction. The aggregate carrier furthermore features a second mount to be connected to the internal combustion engine. The second mount is realized in such a way that a force can be exerted upon the internal combustion engine in a second mounting direction. The second mounting direction extends at an angle ? relative to the first mounting direction.Type: ApplicationFiled: October 28, 2008Publication date: April 30, 2009Applicant: GM GLOBAL TECHNOLOGY OPERATIONS, INC.Inventors: Wolf-Dietrich Bicker, Jurgen Herchenroder
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Publication number: 20080307912Abstract: A transmission assembly, particularly for a straightening machine, has a least one drive and a number of power take-offs, which stand in an effect connection with the drive for a transfer of torque. At least one power take-off is coupled with a torque monitoring device independent of other power take-offs to monitor a power take-off moment that is in effect at the power take-off in question. The torque monitoring device is configured as a function of a result of the power take-off monitoring. The transmission assembly may be connected with a torque transfer mechanism, particularly articulated shafts, of a straightening machine for straightening materials, particularly in plate or strip form, having an arrangement of straightening rollers between which the material to be straightened is conveyed and which are driven by way of the torque transfer mechanism.Type: ApplicationFiled: June 2, 2008Publication date: December 18, 2008Inventors: Bernhard Schafer, Wolfgang Leser
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Patent number: 7448460Abstract: A power take-off for an electric vehicle. The power take-off includes a variable speed electric motor for driving at least one wheel of the vehicle. A transmission, including a neutral state, coupled to the electric motor. An auxiliary output shaft is coupled to the transmission. When the transmission is in the neutral state, the auxiliary output shaft will operate at a speed independent of wheel speed and dependent on the electric motor speed. When the transmission is operably engaged in other than the neutral state, the auxiliary output shaft will operate at a speed related to both the electric motor speed and the wheel speed.Type: GrantFiled: September 28, 2004Date of Patent: November 11, 2008Assignee: Oshkosh CorporationInventors: Jon J. Morrow, Martin Schimke, Christopher K. Yakes
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Patent number: 7421917Abstract: A tractor with a PTO apparatus, comprises: a plurality of wheels; a vehicle body supported by the plurality of wheels; an engine supported on the vehicle body; a rear PTO shaft disposed at a rear of the vehicle body for transmitting power from the engine; a mid-PTO shaft disposed under the vehicle body for transmitting power from the engine; a PTO mode selecting device having a first position for transmitting power only to the rear PTO shaft, a second position for transmitting power to both the rear PTO shaft and said mid-PTO shaft, and a third position for transmitting power only to said mid-PTO shaft; a PTO clutch disposed on a transmission line upstream of said PTO mode selecting device and switchable between an engaged position and a disengaged position; and a restricting mechanism for preventing a change operation of said PTO mode selecting device when said PTO clutch is in the engaged position, and permitting the change operation of said PTO mode selecting device when said PTO clutch is in the disengageType: GrantFiled: June 24, 2005Date of Patent: September 9, 2008Assignee: Kubota CorporationInventors: Akifumi Nishino, Ryuji Kitagawa, Kiyokazu Nakanishi, Tsukasa Wada, Kenzo Ushiro
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Publication number: 20080190223Abstract: In a power driver, a shifter assembly includes: a housing; a ring gear mounted for rotation on the housing; a shift collar mounted for rotation on the housing; an elongated shifter structure coupled to the ring gear and the shift collar, the shifter structure including a misalignment compensator to compensate for misalignment between the ring gear and a feature cooperating with the ring gear.Type: ApplicationFiled: April 13, 2006Publication date: August 14, 2008Applicant: BLACK AND DECKER INC.Inventor: Daniel Puzio
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Publication number: 20080173113Abstract: An auxiliary transmission is provided for a motor vehicle. The auxiliary trans-mission can couple and uncouple input power from the motor to a driveshaft coupled to a differential. The transmission includes a first gearset for coupling the input power to a hydraulic pump and an auxiliary power take-off unit. A second gearset is included for coupling a hydraulic motor to the driveshaft. When power is to be applied to the power take-off unit, the input power is uncoupled from the driveshaft. The hydraulic pump provides pressurized fluid to the hydraulic motor to provide power to the driveshaft. The vehicle's motor can be operated at a constant speed to provide the required power for the power take-off unit whereas the speed of the vehicle can be controlled by controlling the flow of pressurized fluid to the hydraulic motor.Type: ApplicationFiled: January 24, 2008Publication date: July 24, 2008Inventor: JOHN VAN SCHOTHORST
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Patent number: 7399255Abstract: A control system for a vehicle having an accessory generally includes a transmission coupled to an engine and a power take-off unit having an output speed and an output torque. The power take-off unit is coupled to the transmission and adapted to releaseably couple to the accessory. A drivetrain is selectively coupled to the transmission and a control module controls at least one of the output speed and the output torque of the power take-off unit.Type: GrantFiled: June 10, 2005Date of Patent: July 15, 2008Assignee: Polaris Industries Inc.Inventors: Chad B Johnson, Brian J Hitt, Scot A. Taylor, Craig R Vander Ploeg
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Publication number: 20080150312Abstract: An electric vehicle seat storage structure for moving a seat between a seating position and a storage position is provided. The seat storage structure includes a frame having an axle positioned along a rear portion of the cushion and having a seat gear mounted to the axle. An actuator is provided for moving the seat between a seating position and a storage position. The actuator has an output gear positioned about an output shaft that is defined along the longitudinal axis of the actuator. The actuator is mounted within a portion of the frame, such that the output gear and the seat gear are meshed thereto, and such that the axis of the actuator is substantially parallel to the axle of the seat storage frame. Wherein when the seat is moved between the seating position and the storage position, the actuator is moved therewith.Type: ApplicationFiled: December 20, 2006Publication date: June 26, 2008Applicant: GLOBE MOTORS, INC.Inventors: Douglas Jan Lehr, Richard Lee Schneider
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Publication number: 20080131208Abstract: A damping (or heave) plate comprises a generally flat plate attached, beneath the surface of a sea, and in horizontal orientation, to a structural member subject to being vertically moved in response to passing surface waves. The plate tends to resist vertical movements and has the effect of adding mass to the structure. A vertically extending structure is added to both major surfaces of the heave plate for increasing the volume of water moved by the plate. For minimizing drag forces generally created by use of the damping plate, the vertically extending structure is shaped to include curved hydrodynamic surfaces for minimizing turbulence in the surrounding water.Type: ApplicationFiled: May 1, 2007Publication date: June 5, 2008Inventor: Diana Bull
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Publication number: 20080083206Abstract: A gearless, clutchless agricultural rotary vegetation cutter includes a drive train having a tire which is attached to a power shaft which receives power from the PTO of a tractor. As the power shaft spins, it causes the tire to spin against a rotor plate. As the rotor spins in response to the spinning of the tire, the rotor plate causes a blade carrier to which cutting blades are attached to spin. The cutting blades then mow and shred the vegetation encountered. When an obstacle is encountered by the cutting blades which causes the blades to stop turning, the tire continues to turn on the rotor plate without resulting damage to the drive train or to the tractor.Type: ApplicationFiled: August 29, 2007Publication date: April 10, 2008Inventor: Miguel Gerardo Verduzco
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Publication number: 20080053257Abstract: The device for driving the rotor of an auxiliary (11) of the invention is mounted on a turbine engine auxiliaries support (10) which comprises means (15) for driving the rotor shaft (13). It comprises a tubular shaft (17) driven by one of said means (15) and supported by a first bearing (18) and a second bearing (19) which are secured to the auxiliaries support (10), the rotor shaft (13) being coaxial with the tubular shaft (17) and a rotational-coupling means being formed between the rotor shaft (13) and the tubular shaft (17). By virtue of the invention, mechanical loads of the auxiliary (11) are transmitted to a lesser extent to the rotor shaft support bearings (18, 19) and to the auxiliaries support gear train.Type: ApplicationFiled: August 15, 2007Publication date: March 6, 2008Applicant: SNECMAInventors: Guy Frank Paul Dusserre-Telmon, Jean Pierre Galivel, Zoltan Zsiga
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Publication number: 20070277631Abstract: In a gearwheel set for a transmission, in particular for a transmission with a PTO (Power Take-Off) accessory, at least two gearwheels (6, 10) bearing against one another, and the gearwheels (6, 10) being rotatable in relation to one another, and both gearwheels (6, 10) having recesses (8.1-8.3; 11.1-11.3) which form with one another a reception space for an actuator (1), the actuator (1) is to be radially movable in the reception space, and the recesses (8.1-8.3; 11.1-11.3) are to have a different shape.Type: ApplicationFiled: October 19, 2006Publication date: December 6, 2007Inventor: Arnold Sterki
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Publication number: 20070209456Abstract: A power transmission apparatus for a working vehicle has substantially symmetrically disposed first and second transaxles, each of which supports a single axle, and a working apparatus driving power take-off device including an input member. A gear casing is spanned between the first and second transaxles. A primary drive shaft is disposed in the gear casing so as to be drivingly connected to a prime mover. A traveling drive train is disposed in the gear casing so as to drivingly connect the primary drive shaft to the input shafts of the respective transaxles. A working apparatus drive train is disposed in the gear casing so as to drivingly connect the primary drive shaft to the input member of the working apparatus driving power take-off device.Type: ApplicationFiled: February 9, 2007Publication date: September 13, 2007Inventors: Koji Irikura, Masaru Iida, Ryota Ohashi
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Patent number: 7234367Abstract: A control system and method for detecting variable load types and controlling the operation of a PTO clutch to effect engagement of the clutch with variable loads, and especially to more optimally effect the engagement of a clutch with a heavy load is disclosed. The control system includes a controller that receives input and output clutch shaft speed signals and generates control signals to control the pressure applied by the clutch. When heavier loads are applied to the PTO shaft, during the time when control signals are being generated before detection of initial movement of the output shaft, the controller generates one or more shock signals of short duration to cause momentary applications of significantly greater pressure to the clutch in order to break loose the applied load.Type: GrantFiled: March 26, 2004Date of Patent: June 26, 2007Assignee: CNH America LLCInventors: Yanming Hou, Darrel J. Svendson
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Patent number: 7234366Abstract: A control system and method for detecting variable load types and controlling the operation of a PTO clutch to effect engagement of the clutch with variable loads, and especially to more optimally effect the engagement of a clutch with a very light load or an associated over-running clutch is disclosed. The control system includes a controller that receives input and output clutch shaft speed signals and generates control signals to control the pressure applied by the clutch. If no appreciable engine droop is detected at the time of initial movement of the output clutch shaft, the load is considered to be of a very light load type, and a set of control signals based upon such load type designation, which control signals define a control curve that is flatter and more gentle than would otherwise be considered desirable, is thereafter applied to the clutch to effect engagement of the load.Type: GrantFiled: March 26, 2004Date of Patent: June 26, 2007Assignee: CNH America LLCInventor: Yanming Hou
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Patent number: 7225909Abstract: The PTO clutch assembly (150) is readily connected to a shaft (218). The clutch assembly includes a hub (152), a piston assembly (168), and one or more friction discs (156, 157) positioned between a backplate (154) and a pressure plate (164). The shaft is mated with the hub to rotate therewith. The hub is supported by the shaft at a tapered portion thereof. The piston assembly is supported by the hub. The piston assembly can be actuated to cause the clutch assembly to engage the friction discs to impart drive to the shaft. The clutch assembly permits direct access to the friction discs upon removal of the backplate, without disconnecting the hub from the shaft. The fluidly operated PTO clutch assembly allows for replacement of a mechanical linkage Bell Housing style PTO clutch assembly.Type: GrantFiled: November 26, 2004Date of Patent: June 5, 2007Assignee: Logan Clutch CorporationInventors: Robert M. Kalinsky, Scott W. Stevens
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Patent number: 7181328Abstract: Method and arrangement for selecting a starting gear for a vehicle having an engine (3), an AMT-type transmission (5) and a power take-off (9) for maneuvering at least one body device on the vehicle. The method includes the steps of generating a first signal upon activation of the power take-off (9) for the maneuvering of at least one body device mounted on the vehicle. The gear selection strategy of the transmission (5) is controlled for selection of a predetermined starting gear in dependence on at least the first signal and maintaining the predetermined starting gear for as long as at least one predetermined condition is met.Type: GrantFiled: January 3, 2006Date of Patent: February 20, 2007Assignee: Volvo Lastvagnar ABInventors: Sixten Berglund, Anders Eriksson, Marcus Steen
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Patent number: 7135785Abstract: A generator unit for tractors (1) has a housing (4), which can be non-rotationally mounted on a component of the tractor (1). An input shaft is rotationally supported in the housing (4) and connectable to a power take-off shaft (2) of the tractor (1). An electrical generator (6) is coupled with the housing. The electrical generator (6) has a stator and a rotor, which is drive-wise connected to the input shaft and is driven by the same. The electrical generator (6) serves to driver electrical loads of the tractor 1 or of an agricultural device.Type: GrantFiled: January 22, 2004Date of Patent: November 14, 2006Assignee: GKN Walterscheid GmbHInventors: Dieter Kropp, Andreas Roth, Wolfgang Adamek, Holger Jung
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Patent number: 7128686Abstract: One or more friction devices of a transmission coupled to an engine through a fluid coupling are used during engine neutral idle operation to control the state of the fluid coupling for synchronous engagement and disengagement of a PTO input gear with a transmission-driven gear. The fluid coupling includes an input member connected to the engine and an output member connected to the input shaft of the transmission, and the transmission friction devices temporarily ground the output member without mechanically coupling the transmission input and output shafts under specified enable conditions. This maintains the transmission input shaft in a stationary condition while an actuator engages or disengages the PTO input gear with the transmission-driven gear. Following engagement or disengagement of the PTO input gear, the friction devices are released to resume normal operation of the fluid coupling.Type: GrantFiled: June 25, 2004Date of Patent: October 31, 2006Assignee: General Motors CorporationInventors: Ronald P. Hitch, William J. Wegeng
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Patent number: 7071590Abstract: A coaxial dynamical system includes a motor having a transmission shaft, a dynamical transmission member rotatably connecting to the transmission shaft, and a magnetic driving mechanism connected between the transmission shaft and the dynamical transmission member. The magnetic driving mechanism includes a sleeve assembly, a sleeve fixing member, a magnetic coupler and a magnetic driver. The magnetic coupler has a first multi-pole magnet and is positioned next to the transmission shaft. The magnetic driver is fixed to the transmission shaft corresponding to the magnetic coupler and has a second multi-pole magnet with an opposite polarity relative to the first multi-pole magnet of the magnetic coupler. When the dynamical transmission member is fails, the magnetic driving mechanism is prevented from adversely affecting the normal working of the transmission shaft through the magnetic driver by disconnecting from the magnetic coupler.Type: GrantFiled: June 23, 2004Date of Patent: July 4, 2006Assignee: Liung Feng Industrial Co., Ltd.Inventors: Lin Heng-I, Chuang Feng-Ming
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Patent number: 7048106Abstract: A PTO control system and method for engaging a PTO clutch of a vehicle or work machine such as, but not limited to, an agricultural tractor, that can effectively utilize both engine speed and PTO output speed values for determining a predicted and/or actual PTO load and other variable conditions which can effect engagement, and which can responsively calibrate the system for engagement under the load and other conditions and adaptively control applied acceleration and torque during the engagement.Type: GrantFiled: March 26, 2004Date of Patent: May 23, 2006Assignee: CNH America LLCInventor: Yanming Hou
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Patent number: 6962093Abstract: A noise reduction structure is provided for use with a meshing gear assembly, such as in a power take-off unit for selectively providing power to one or more rotatably driven accessories. The meshing gear assembly includes meshing input and output gears that are supported within a housing and are rotatably driven during use. A helical coil wrap spring extends about and is frictionally engaged with a portion of the output gear. A first end of the wrap spring extends outwardly therefrom to form a control tang that extends adjacent to an abutment surface provided on the housing of the power take-off unit. As a result, the wrap spring is prevented from rotating relative to the housing as the output gear is rotatably driven.Type: GrantFiled: January 3, 2003Date of Patent: November 8, 2005Assignee: Parker Hannifin CorporationInventor: Russell K. Warner
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Patent number: 6935474Abstract: A power take off unit for a motor vehicle equipped with a standard transmission is clutched using compressed air available on the vehicle. Available air pressure is monitored and a clutch interlock implemented through the vehicle electrical control system is made responsive thereto to prevent engagement of the clutch if the load is too heavy for the available air pressure.Type: GrantFiled: April 7, 2003Date of Patent: August 30, 2005Assignee: International Truck Intellectual Property Company, LLCInventors: Joseph A. Bell, Jay E. Bissontz
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Publication number: 20040216539Abstract: In a transmission for a working vehicle, a PTO input shaft is located with its rotational axis extending in a vehicle lengthwise direction substantially at a widthwise center of a transmission case along a vehicle width direction. A running power input shaft is located with its rotational axis extending in the vehicle lengthwise direction substantially at the same position as that of the PTO input shaft along the vehicle width direction and at a lower side of the PTO input shaft. The transmission case provides an accommodation space for accommodating a differential gear unit, which space is displaced to a first lateral side of the vehicle along the vehicle width direction. A running power transmission shaft is located on the front side of the space with its axis extending in the vehicle lengthwise direction, and the running power input shaft, the running power transmission shaft and the differential gear unit are interlocked to each other via a running power gear train.Type: ApplicationFiled: June 4, 2004Publication date: November 4, 2004Inventors: Norihiro Ishii, Hirohiko Kawada, Hideki Kanenobu, Hiroshi Tottori, Kentaro Nagata
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Publication number: 20040211274Abstract: A power takeoff assembly includes a housing, a drivingly engageable input shaft, a power takeoff shaft, a source of pressurized fluid, a fluid filled clutch assembly with a first clutch element operatively connected to the input shaft and a second clutch element operatively connected to the power takeoff shaft, and a brake operable to engage the power takeoff shaft to the housing. The clutch assembly is placed in an engaged state when pressurized fluid from the pressure source causes the first clutch element to engage the second clutch element such that the input shaft drives the power takeoff shaft. The clutch assembly is placed in a disengaged state when pressurized fluid from the pressure source is removed from the clutch assembly. The brake engages the power takeoff shaft to the housing when the clutch assembly is in the disengaged state to prevent fluid forces within the clutch assembly from driving the power takeoff shaft.Type: ApplicationFiled: April 25, 2003Publication date: October 28, 2004Inventor: John M. Seipold
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Publication number: 20040195069Abstract: A power take off unit for a motor vehicle equipped with a standard transmission is clutched using compressed air available on the vehicle. Available air pressure is monitored and a clutch interlock implemented through the vehicle electrical control system is made responsive thereto to prevent engagement of the clutch if the load is too heavy for the available air pressure.Type: ApplicationFiled: April 7, 2003Publication date: October 7, 2004Inventors: Joseph A. Bell, Jay E. Bissontz
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Publication number: 20040154418Abstract: The invention relates to a mechanical structure presenting at least one vibratory property, the structure presenting at least one element for modifying said vibratory property, which element is made of a polymer that is flexible and heavy, e.g. containing massive filler material.Type: ApplicationFiled: January 14, 2004Publication date: August 12, 2004Applicant: HutchinsonInventor: Michel Pompei
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Publication number: 20040035230Abstract: The invention relates to a gear train element in a gear train arrangement (5, 18), said gear train element (5) being driven on the drive side by a drive motor (1), on whose power take-off shaft (2) the gear train element (5) is mounted. The peripheral surface of the gear train element (5) is provided with a toothed gearing (7), and said element meshes with one or more toothed gearings of additiona gear train elements (18). Axially displaceable and adjustable support elements (11, 12; 33, 34, 35, 36) and sleeve-type followers (13, 14; 30, 31) are mounted between the power take-off shaft (2) and a set of springs (8) and also between the set of springs (8) and the gear train element (5).Type: ApplicationFiled: May 6, 2003Publication date: February 26, 2004Inventors: Harald Bux, Anton Paweletz
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Publication number: 20030145666Abstract: A noise reduction structure is provided for use with a meshing gear assembly, such as in a power take-off unit for selectively providing power to one or more rotatably driven accessories. The meshing gear assembly includes meshing input and output gears that are supported within a housing and are rotatably driven during use. A helical coil wrap spring extends about and is frictionally engaged with a portion of the output gear. A first end of the wrap spring extends outwardly therefrom to form a control tang that extends adjacent to an abutment surface provided on the housing of the power take-off unit. As a result, the wrap spring is prevented from rotating relative to the housing as the output gear is rotatably driven.Type: ApplicationFiled: January 3, 2003Publication date: August 7, 2003Inventor: Russell K. Warner
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Patent number: 6598496Abstract: 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: GrantFiled: March 19, 2001Date of Patent: July 29, 2003Assignee: General Motors CorporationInventor: Brian L. Pannell
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Patent number: 6564891Abstract: A power take-off casing (47) including therein a rear-PTO shaft (12) and a transmission mechanism (50) therefor is mounted on an outer surface of a rear wall (3c) of the transmission casing (3) disposed between left and right rear wheels (4) which constitute drive wheels for a working vehicle, and a gear (52) constituting an input member of the transmission mechanism is operatively connected to a drive mechanism (46) for a mid-PTO shaft (9) which extends forwardly from the inside of transmission casing through a front wall (3a) thereof. A clutch (60) for selectively cutting-off the drive of the rear-PTO shaft is provided preferably such that it couples the gear selectively to a drive gear (58) which is rotatably mounted on the mid-PTO shaft. In a working vehicle in which a transmission casing is disposed between left and right front wheels constituting the drive wheels for the vehicle, a power take-off casing having a front-PTO shaft is mounted on an outer surface of a front wall of the transmission casing.Type: GrantFiled: April 30, 2001Date of Patent: May 20, 2003Assignee: Kanzaki Kokyukoki Mfg. Co., Ltd.Inventors: Norihiro Ishii, Hirohiko Kawada, Hiroshi Tottori, Kentaro Nagata
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Patent number: 6557687Abstract: A process for achieving engagement of a power source with a high inertia load by use of a clutch provides for the sequential engagement of the clutch until the speed of the power source drops to a first threshold, at which time the clutch is disengaged until the speed of the power source recovers to a second threshold. The process is repeated until the power source operates above the first threshold for a set period of time. The process may be terminated, leaving the clutch either engaged or disengaged, after a certain number of sequential attempts at engagement and disengagement have been made, or after a certain period of time has elapsed. The invention also relates to a system and associated process by which a microprocessor obtains various data regarding the operational state of a power source, load, and a clutch interposed therebetween. The data includes the speed of the power source and pressure, temperature and filter conditions of the associated clutch.Type: GrantFiled: June 22, 2001Date of Patent: May 6, 2003Assignee: Power Transmission Technology, Inc.Inventor: Robert E. Herchick
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Publication number: 20030075411Abstract: A power transmitting apparatus comprises a housing having an opening at its end surface in the longitudinal direction thereof to be closed by a cover member (33), which supports an end of a brake support shaft (60) rotatably supporting a brake shoe (61). A hydraulic cylinder (63) for operation the brake is detachably attached to a side wall of the housing. A piston (64) of the hydraulic cylinder contacts with a free end of the brake shoe. The cover member also supports ends of a clutch shaft (26) and a PTO shaft (29), while a clutch housing (38) of a PTO clutch (27) is provided on the clutch shaft so as to be braked by the brake shoe in the state of the PTO clutch disengaged, thereby constituting a subassembly. By attaching the cover member to the end surface of the housing so as to close the opening, all the brake support shaft, the clutch shaft and the PTO shaft supported by the cover member are installed in the housing.Type: ApplicationFiled: September 24, 2002Publication date: April 24, 2003Applicant: Kanzaki Kokyukoki MFG. CO. LTD.Inventors: Mizuya Matufuji, Masashi Inanaga
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Patent number: 6533053Abstract: A quick detachable drive shaft for use with lawn tractors having a rearward end mounted to a power source and a forward end supported by a bearing detachably mounted to a plate that is detachably connected to a bracket on the tractor with a latch that maintains the plate in connection with the bracket in a first position and releases the plate from the bracket in second position.Type: GrantFiled: August 8, 2001Date of Patent: March 18, 2003Assignee: Deere & CompanyInventor: Stephan R. Hayden
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Publication number: 20030029691Abstract: A method is provided for controlling a PTO clutch of a transmission subject to a varying inertial load. The method includes providing a signal to a pressure control valve selectively engaged with the PTO clutch configured to engage a drive source of the transmission with an implement. The signal to the pressure control valve is modulated based on a single predetermined profile.Type: ApplicationFiled: August 10, 2001Publication date: February 13, 2003Inventors: Timothy A. Lorentz, Kevin A. Vernagus
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Patent number: 6499548Abstract: An extended shaft for connecting a standard, transmission mounted power take-off device to an auxiliary device which permits non-interference mounting configurations of the auxiliary device to the power take-off device. The extended shaft further provides mounting bracketry to prevent stresses when thermal expansion or contraction of relevant parts occurs during the operation of the motor vehicle or power take-off device.Type: GrantFiled: July 19, 2001Date of Patent: December 31, 2002Assignee: Muncie Power Products, Inc.Inventor: Larry E. Wesley
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Patent number: 6405815Abstract: The hydraulic coupler is used for connecting a valve to a tool used with a vehicle having a hydraulic pump and fluid communication with the valve through hydraulic plumbing. The hydraulic coupler comprises a coupler body having a base portion, a neck portion and a connector portion. The coupler body is two connector chambers in the connector portion which arc in fluid communication with two apertures, which when the hydraulic coupler is mounted on the valve, are in fluid communication with the valve. A connector assembly, typically of the quick-connect type, is mounted in each connector chamber and is configured to receive hydraulic plumbing to connect the valve to the tool. One embodiment provides that the coupler body is narrower than the valve on which it is mounted.Type: GrantFiled: January 6, 2000Date of Patent: June 18, 2002Assignee: Case Corp.Inventors: Guy T. Stoever, Jimmie Clifford, Gerard Restaino, III
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Patent number: 6396173Abstract: An actuator for engaging and disengaging parts together which, during actuation may incur an obstacle to engagement, the actuator including a mechanism for incurring the obstacle and automatically stopping actuation, a mechanism for removing the obstacle to engagement and for automatically restarting actuation upon removal of the obstacle thereby to achieve engagement.Type: GrantFiled: July 24, 2000Date of Patent: May 28, 2002Assignee: Interpump Hydraulics S.p.A.Inventor: Silvano Prampolini
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Patent number: 6386303Abstract: The invention relates to a method for controlling the drive of the power take-off (PTO) shaft of a tractor in which the PTO shaft can be connected to the drive engine by means of a PTO shaft clutch. The tractor comprises a hydraulic power lift to which a working machine driven by the PTO shaft can be coupled.Type: GrantFiled: December 20, 2000Date of Patent: May 14, 2002Assignee: Case CorporationInventors: Alfred Zibuschka, Oliver Hrazdera
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Patent number: 6352035Abstract: A track traveling vehicle having rubber tires for engaging a public road to permit the vehicle to travel thereon, and also having metal wheels capable of engaging rails associated with a track for permitting the vehicle to travel therealong. The metal wheels are supported on the chassis of the vehicle for vertical movement between a raised position wherein the rubber tires engage the road, and a lowered position wherein the metal wheels engage the rails and the rubber tires are maintained in an upwardly suspended non-engaged position. Hydraulic pumps are driven by the rubber tires when they are in the raised suspended position, and the hydraulic pumps supply hydraulic fluid to hydraulic motors to effect driving thereof. The hydraulic motors are in turn drivingly coupled to either the front or rear metal wheels to effect driving thereof when the metal wheels are engaged on the rails so that the vehicle can travel therealong.Type: GrantFiled: September 28, 2000Date of Patent: March 5, 2002Assignee: Nikken CorporationInventors: Jiro Kashiwase, Katsuyoshi Aida
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Publication number: 20020011125Abstract: An extended shaft for connecting a standard, transmission mounted power take-off device to an auxiliary device which permits non-interference mounting configurations of the auxiliary device to the power take-off device. The extended shaft further provides mounting bracketry to prevent stresses when thermal expansion or contraction of relevant parts occurs during the operation of the motor vehicle or power take-off device.Type: ApplicationFiled: July 19, 2001Publication date: January 31, 2002Inventor: Larry E. Wesley
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Publication number: 20010027689Abstract: A control apparatus of an automatic transmission capable of achieving a smooth change of output shaft torque to torque which can be generated by a friction clutch, thus enabling a smooth gear change even if the output shaft torque is high at the gear change. If the output shaft torque exceeds limit transmission output shaft torque obtained by multiplying a torque capacity of the friction clutch by a gear ratio provided for the friction clutch when a gear change command is issued in the automatic transmission, engine torque is controlled so as to make the output shaft torque decreased to the limit transmission output shaft torque, and then the engine torque control is switched when the output shaft torque decreased to the limit transmission output shaft torque to start the gear change operation.Type: ApplicationFiled: February 26, 2001Publication date: October 11, 2001Inventors: Mitsuo Kayano, Toshimichi Minowa, Tatsuya Ochi, Hiroshi Sakamoto
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Patent number: 6263749Abstract: An extended shaft for connecting a standard, transmission mounted power take-off device to an auxiliary device, which permits non-interference mounting configurations of the auxiliary device on a transmission. The extended shaft further provides mounting bracketry to prevent stresses when thermal expansion or contraction of relevant parts occurs during the operation of the motor vehicle or power take-off device.Type: GrantFiled: November 8, 1999Date of Patent: July 24, 2001Assignee: Muncie Power Products, Inc.Inventor: Larry E. Wesley