Tilting Patents (Class 414/697)
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Patent number: 11913192Abstract: A method for tipping out a cargo load from a reception unit includes providing the reception unit on a lifting device of a work machine, performing a tipping out process of a mass of cargo load from the reception unit, detecting a predetermined residual mass of the cargo load remaining in the reception unit, detecting a predetermined loading mass tipped out during the tipping step, and completing the tipping out process as a function of the predetermined residual mass or the predetermined loading mass.Type: GrantFiled: September 24, 2019Date of Patent: February 27, 2024Assignee: DEERE & COMPANYInventors: Sebastian Stark, Frederic Ballaire, Patrick Bechtold
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Patent number: 11365522Abstract: A grading system for connection to a vehicle having vertically movable arms, the grading system including a grading blade assembly having a frame having a first pivot extending upward, a second pivot extending forward, a blade connected to the frame via the first pivot and the second pivot, a blade yaw actuator and a blade roll actuator, wherein the frame is configured to have the first pivot extend substantially vertically and the second pivot extend substantially longitudinally when the grading blade assembly is connected to the vehicle and the blade and vehicle are in a level position on a ground surface and the vertically movable arms of the vehicle are in a first raised position above a lowest most position.Type: GrantFiled: March 21, 2018Date of Patent: June 21, 2022Assignee: SC GRADE, LLCInventor: Bo Jason Stocks
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Patent number: 11286645Abstract: A hydraulic system includes a first hydraulic actuator, a second hydraulic actuator, a first pump to supply operation fluid to the first hydraulic actuator, a second pump to supply operation fluid to the second hydraulic actuator, a second control valve to control operation fluid to be supplied from the second pump to the second hydraulic actuator, and a first control valve including a main control valve to control operation fluid to be supplied from the first pump to the first hydraulic actuator, and a subordinate control valve configured to control operation fluid to be supplied from the second pump to the second control valve and to the first hydraulic actuator. The operation fluid supplied from the second pump is confluent with operation fluid to be supplied from the first pump to the first pump, in a case of activating both of the first hydraulic actuator and the second hydraulic actuator.Type: GrantFiled: June 25, 2018Date of Patent: March 29, 2022Assignee: KUBOTA CORPORATIONInventors: Hisayuki Hiramatsu, Kazuaki Shobu
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Patent number: 11274419Abstract: In a specific state where the raising operation of a boom 25 and the swing operation of an upperstructure 21 are performed at the same time to supply a hydraulic oil from a first pump 2 to a cylinder 7a through a first valve 6a, and to supply the same from a second pump 3 to a motor 7b through a second valve 6b, a controller 10 outputs the command current for opening a valve 13, and supplies a part of the hydraulic oil supplied to the motor 7b from the second pump 3 to the cylinder 7a through the third valve 6c when the motor 7b does not reach a steady swing state, and outputs a command current for closing the valve 13 when the motor 7b is in the steady swing state.Type: GrantFiled: September 27, 2018Date of Patent: March 15, 2022Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Shu Shirato, Yoshihiro Shirakawa, Akihiro Narazaki, Katsuaki Kodaka
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Patent number: 10731321Abstract: A compact articulated-steering loader is provided. The loader includes a front portion having a first pair wheels and a seat reference point (SgRP) for an operator. The loader also includes a rear portion having a second pair of wheels, wherein the rear portion is coupled to the front portion via a vertical articulation axis. The loader includes one or a pair of loader arms coupled to the front portion via a horizontal arm pivot axis, the one or a pair of loader arms having a bucket or an attachment interface for a bucket at a distal portion thereof. The arm pivot axis is disposed to the rear of the SgRP. The loader also includes a power source disposed on the front frame. The power source is coupled to at least one of the first and second pairs of wheels to provide motive power for the loader.Type: GrantFiled: March 9, 2020Date of Patent: August 4, 2020Assignee: MAC Cormpany, LLCInventors: Thomas G Lykken, Peter J Christianson
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Patent number: 10662619Abstract: A hydraulic apparatus for a hydraulic work vehicle capable of supplying pressure oil to any of a bucket cylinder, an arm cylinder, a boom cylinder, a swing cylinder, a blade cylinder, a turning hydraulic motor, a left traveling hydraulic motor, a right traveling hydraulic motor, and a PTO hydraulic motor by a first hydraulic pump, a second hydraulic pump, or a third hydraulic pump. The pressure oil can be branched off from a discharge oil passage of the third hydraulic pump and supplied through an external pipe to a downstream side of a load check valve disposed on an oil passage communicating with a pump port of a PTO control valve for switching supply of pressure oil from the second hydraulic pump to an external hydraulic work machine.Type: GrantFiled: June 2, 2016Date of Patent: May 26, 2020Assignee: YANMAR CO., LTD.Inventor: Kunihiko Sakamoto
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Patent number: 10533303Abstract: A construction machine includes a control device having a reaction-force correction control section. When a difference between a target operator input and an actual operator input for a front member exceeds a preset range, the reaction-force correction control section executes correction to increase an operation reaction force to be applied by a reaction-force applying device to an operating unit operating an actuator driving the front member. When the difference falls within the range, the reaction-force correction control section executes correction to decrease the operation reaction force to be applied by the reaction-force applying device to the operating unit operating the actuator driving the front member.Type: GrantFiled: March 15, 2016Date of Patent: January 14, 2020Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Yoshiyuki Tsuchie, Hiroshi Sakamoto, Hidekazu Moriki, Yasutaka Tsuruga
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Patent number: 10352019Abstract: A front loader includes a boom, a first pivotal shaft disposed on a tip portion of the boom, a bucket supported by the first pivotal shaft to be capable of performing a shoveling movement and a dumping movement, a boom cylinder to swing the boom, a bucket cylinder to move the bucket to make the bucket perform the shoveling movement and the dumping movement, a control valve to be switched to any one of a first state supplying an operation fluid to the bucket cylinder and a second state stopping supplying the operation fluid to the bucket cylinder, a first movable member to turn around the first pivotal shaft in accordance with the movement of the bucket, and a wire connecting the first movable member to the control valve.Type: GrantFiled: May 25, 2017Date of Patent: July 16, 2019Assignee: KUBOTA CORPORATIONInventors: Robert Stewart Boyd, Daniel Underwood, Carlos Cabrera
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Patent number: 10072391Abstract: A working machine includes: a boom base portion including: an inner side wall; and an outer side wall disposed opposite to the inner side wall; a lift link disposed on a rear portion of the boom base portion; and a boom cylinder disposed in front of the lift link. One end side of the lift link is inserted between the inner side wall and the outer side wall and is pivotally supported on the boom base portion. The other end side of the lift link is pivotally supported on the machine body. One end of the boom cylinder is inserted between the inner side wall and the outer side wall in front of the lift link and is pivotally supported on the boom base portion. The other end of the boom cylinder is pivotally supported on the machine body by below the lift link.Type: GrantFiled: September 23, 2015Date of Patent: September 11, 2018Assignee: KUBOTA CORPORATIONInventors: Toshihiko Takemura, Shunichiro Mori, Hiroshi Koyamatsu, Hayato Ido, Shigeki Morishita
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Patent number: 10030676Abstract: Commonly available industrial vehicles may be constructed with a frame originally designed for a particular fuel source where such a frame is used to construct an industrial vehicle that uses a different fuel source with a different fuel storage compared to the industrial vehicle for which such a frame was originally intended. Such a truck powered by a different fuel source typically includes an empty space that was originally intended to house the original fuel, and such empty space may be used to increase the hydraulic storage capacity for such a truck.Type: GrantFiled: April 23, 2015Date of Patent: July 24, 2018Assignee: HYSTER—YALE GROUP, INC.Inventors: Maurice Sifri, Chikka Rao, Tory Hoff
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Patent number: 10029896Abstract: A tool coupler for use in coupling a tool to a machine may have a frame with a first end receivable within the tool and a second end located opposite the first end. The tool coupler may also have a hydraulic cylinder pinned to the second end of the frame, and a wedge member pivotally connected to the hydraulic cylinder and configured to pass through the second end of the frame and selectively engage the tool. Engagement of the wedge member with the tool may inhibit disconnect of the first end of the frame from the tool.Type: GrantFiled: December 17, 2014Date of Patent: July 24, 2018Assignee: Caterpillar Inc.Inventors: Xiaoming Tan, Michael Anthony Calamari, Michael Scott Sekulich, Bradley Robert Lancaster
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Patent number: 9719531Abstract: A device for varying the swept volumes of first and second hydraulic machines, whose swept volumes depends upon pivoting positions of adjustable axes thereof which can be connected to one another by first and second lines. The axes can be coupled to a piston-cylinder device which is adjustable by a control valve unit for pivoting the axes. Pressures in the area of the hydraulic machines can be limited by the control valve unit. The control valve unit can be coupled to a respective first or second line with the highest pressure. A device for determining an existing actual pressure is located upstream of the control valve unit, at least in the area of one of the first and the second lines that connects with the first and the second hydraulic machines. The control valve unit can be actuated based on the actual pressure value determined by the device.Type: GrantFiled: June 5, 2013Date of Patent: August 1, 2017Assignee: ZF Friedrichshafen AGInventors: Jan-Frederik Kuhn, Timo Maise, Marcus Hiemer, Stephan Schinacher, Sven Bieber
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Patent number: 9719228Abstract: A work vehicle may include a chassis, linkage, and locking pin. The linkage may include an upper link pivotally connected to the chassis, lower link pivotally connected to the chassis, and boom. The boom may include an upper arm pivotally connected to the upper link, lower arm pivotally connected to the lower link, front arm pivotally connected to a work tool assembly, and locking tab affixed to one of the front arm and the lower arm and protruding from one of the front arm and the lower arm in a direction away from the work tool assembly. The locking pin may be connected to the chassis and extend laterally relative to the chassis from a retracted position outside a travel path of the locking tab to an extended position intersecting the travel path of the locking tab.Type: GrantFiled: March 24, 2015Date of Patent: August 1, 2017Assignee: DEERE & COMPANYInventors: Nilesh Kumbhar, Travis A. Shekleton, Kyle T. Martin
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Patent number: 9458606Abstract: A boom apparatus comprises a boom structure, at least one flexible line, a fluid cylinder, and a barrier. The boom structure comprises a first boom and a second boom attached pivotally to the first boom. The at least one flexible line extends along the boom apparatus. The fluid cylinder is attached pivotally to the first boom and the second boom. The fluid cylinder comprises an end portion pinned to the second boom. The barrier is positioned between the end portion and the second boom. The at least one flexible line is routed externally of the second boom through a passageway positioned between the barrier and the second boom such that the barrier spaces the at least one flexible line apart from the end portion.Type: GrantFiled: January 31, 2013Date of Patent: October 4, 2016Assignee: DEERE & COMPANYInventors: Steven J. Ditzler, Peter D. Zach, James F. O'Halloran, Jonathan R. Hunt
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Patent number: 9341198Abstract: A hydraulic drive device for a hydraulic excavator, includes: a first hydraulic pump; a first boom directional control valve and a second arm directional control valve which are connected in parallel to the first pump; a second hydraulic pump; and a second boom directional control valve and a first arm directional control valve which are connected in parallel to the second pump; wherein: the hydraulic drive device also includes: a third hydraulic pump; a third boom directional control valve connected to the third pump and controlling the flow of pressure oil supplied to a boom cylinder; and a third arm directional control valve connected in tandem with the third boom directional control valve and controlling the flow of pressure oil supplied to an arm cylinder.Type: GrantFiled: May 17, 2012Date of Patent: May 17, 2016Assignee: Hitachi Construction Machinery Co., Ltd.Inventors: Tsuyoshi Nakamura, Kazunori Nakamura, Yasuo Okano, Kouji Ishikawa, Kensuke Sato, Hiroyuki Azuma, Mitsuhiko Kanehama, Yusuke Kajita
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Patent number: 9340956Abstract: A work vehicle includes a frame including generally upwardly extending laterally spaced side members. A boom structure includes a pair of arms pivotably connecting the boom structure to the frame. A pressurized fluid system is operably associated with the boom structure for raising and lowering jointly each of the arms along a path of travel adjacent a corresponding side member. A stop member selectably extends outwardly from at least one of the side members between a locking position and a retracted position, the locking position extending at least a portion of the stop member into the path of travel of a corresponding arm of the boom structure to prevent a lowering movement of the boom structure beyond a predetermined height. A boom lock system prevents the fluid system from applying a fluid force to lower the boom structure when the stop member is in the locking position.Type: GrantFiled: August 22, 2013Date of Patent: May 17, 2016Assignee: CNH Industrial America LLCInventors: Brad M. Dilts, Emory L. Frey, Curtiss M. Lee, John M. Moffitt, Lance A. Taylor, Scott M. Timken
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Patent number: 9234327Abstract: A front loader arrangement includes a bracket, a mounting mast mounted on upper and lower bearings of the bracket, a loader arm which is articulated to a first pivot pin on the mast, a loader support articulated to a second pivot pin on the mast, and a locking device for locking the mast to the bracket. The locking device is arranged on the loader support. The locking device includes a pivoting locking bar which is mounted on a third pivot pin on the loader support, a pre-tensioning device which pre-tensions the locking bar depending on its position relative to the loader support into an open or a closed position, and an adjusting device arranged on the mast which can be brought into engagement with the locking bar, by which the locking bar can be moved into the closed position.Type: GrantFiled: July 24, 2014Date of Patent: January 12, 2016Assignee: DEERE & COMPANYInventors: Jody A. Oickle, Henry Friesen, Radu T. Guja
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Patent number: 9193522Abstract: Provided is an apparatus for removing material from a reciprocating floor container. The apparatus may comprise a first member, a flexible sealing portion coupled to the first member and configured to provide a seal between the first member and the container, and a biasing arrangement configured to enable the first member to be moveably attached to a frame member. The biasing arrangement may comprise an actuation mechanism for biasing the flexible sealing portion towards the container. The actuation mechanism may comprise adjustable tension means. In some embodiments of the invention there may also be provided a system comprising a frame member and an apparatus, wherein the frame member is moveable through the container in use.Type: GrantFiled: June 8, 2012Date of Patent: November 24, 2015Inventor: Oliver Dixon
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Patent number: 9051716Abstract: A loader coupling system includes an arm coupler and a link coupler. The arm coupler includes first and second plunger pins located respectfully at opposite first and second ends of the body. At least one plunger actuator is operatively connected to the first and second plunger pins, and the plunger actuator is selectively operative to move the first and second plunger pins between a retracted position and an extended position. The link coupler includes a tilt link with a first end adapted to be pivotally connected to a control link of the associated loader machine and a second end including a hook adapted to selectively engage and retain a cross-pin of the associated attachment. A lock system is connected to the tilt link and is adapted to selectively capture the cross-pin of the associated attachment in the hook.Type: GrantFiled: August 13, 2012Date of Patent: June 9, 2015Assignee: Paladin Brands Group, Inc.Inventors: Adam Bricker, Anthony Seda, Robert Sikorski
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Publication number: 20150098786Abstract: A work tool position sensing assembly for an earth moving machine is disclosed. The earth moving machine has a pivotally movable work tool connected to the pivotally movable stick. The work tool and the stick are interconnected by a tilt linkage. Angular position of the work tool is determined by a work tool position sensing assembly. The work tool position sensing assembly includes a pivot pin, a first gear, a second gear and a rotatory position sensor. The pivot pin is configured to attach the stick with the tilt linkage and is permitted to rotate proportionally with the angular rotation of the work tool. The rotation of the pivot pin is transmitted to the rotatory position sensor via the first gear and the second gear. The rotatory position sensor is configured to measure the angular rotation of the pivot pin. The rotatory position sensor is disposed inside the body of the stick.Type: ApplicationFiled: October 3, 2013Publication date: April 9, 2015Applicant: Caterpillar Inc.Inventor: Michael Subrt
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Publication number: 20150083447Abstract: A work vehicle includes a motor associated with selectable movement of a frame by a first operator control. The frame structurally carries a cab structure and a manipulating structure associated with an implement for performing work. The manipulating structure is selectably movable by a second operator control located in the cab structure. All control functions associated with positioning the implement with respect to three different rotational axes are manipulable using the second operator control.Type: ApplicationFiled: November 24, 2014Publication date: March 26, 2015Inventor: Brady Lewis
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Patent number: 8939699Abstract: In a construction machine, a boom assist cylinder (7A) assists an operation of a boom (4) by a hydraulic pressure, and an arm assist cylinder (8A) assists an operation of an arm (5) by a hydraulic pressure. An accumulator (16) accumulates operation oil to be supplied to the boom assist cylinder and the arm assist cylinder in a pressurized state. A first hydraulic pipe (14) connects between the boom assist cylinder and the arm assist cylinder. A second hydraulic pipe (12) connects between the arm assist cylinder and the accumulator. The second hydraulic pipe is connected to a hydraulic connection port of the arm assist cylinder so that the operation oil is supplied in a direction of closing the arm from the accumulator to the arm assist cylinder.Type: GrantFiled: April 19, 2011Date of Patent: January 27, 2015Assignee: Sumitomo Heavy Industries, Ltd.Inventor: Koichiro Tsukane
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Publication number: 20140365081Abstract: A machine includes a machine body; a lifting arm assembly coupled to the machine body and carrying a pivotal mounting arrangement adapted to receive a working implement and being moveable between a raised and a lowered configuration; a compensation ram coupled between the machine body and the lifting arm assembly and configured to extend and retract; a tilt ram configured to move the pivotal mounting assembly between a crowd and a dump configuration, the tilt ram having a first and a second chamber; and a first sensor for sensing a hose burst signal, a second sensor for sensing a lift signal; a hose burst protection system such that fluid passes into the hose burst protection system, the hose burst protection system being configured to allow the passage of fluid from the second chamber when there is no hose burst signal.Type: ApplicationFiled: November 2, 2011Publication date: December 11, 2014Applicant: J.C. Bamford Excavators LimitedInventor: Edward Owston
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Patent number: 8827625Abstract: A work vehicle includes a first loader arm portion pivotably connected at one end to a frame of the vehicle and configured to slidably receive a second loader arm portion along an opposed end of the first loader arm portion. A mechanical linkage interconnects the loader arm portions and the frame. A fluid cylinder operatively connected between each of the frame and the loader arm portions is configured to raise and lower the loader arm portions between a retracted (lowered) position and an extended (raised) position. As the fluid cylinder is actuated to urge the loader arm portions toward the extended (raised) position, the mechanical linkage results in slidable movement of the second loader arm portion with respect to the first loader arm portion so that a collective length of the loader arm portions in the extended (raised) position is increased.Type: GrantFiled: August 25, 2010Date of Patent: September 9, 2014Assignee: CNH Industrial America LLCInventor: Joseph M. Biggerstaff
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Patent number: 8807909Abstract: A tilting system for an implement pivotally connected to a lift arm. The tilting system includes a tilt cylinder configured to provide a rotary movement to the implement. The tilting system includes a tilt lever pivotally connected to the tilt cylinder by a pivot pin E and to the implement by a pivot pin C. The tilting system further includes a tilt link pivotally connected to a lift arm by a pivot pin F, and to the tilt lever by a pivot pin D. An angle defined between a line DE connecting the pivot pins D and E and a line DC connecting the pivot pins D and C, is in the range of 135 to 165 degrees.Type: GrantFiled: October 12, 2012Date of Patent: August 19, 2014Assignee: Caterpillar Inc.Inventors: William C. Tracy, Karl Canner, Wayne E. Harshberger, II, Jason J. Hagedorn, Darren M. Schambach, James White
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Publication number: 20140205412Abstract: A hydraulic system for a power shovel is disclosed. The hydraulic system may have a tank, a pump configured to draw fluid from the tank and pressurize the fluid, a crowd cylinder extendable and retractable to adjust a length of a dipper handle, and a valve in fluid communication with the tank, the pump, and the crowd cylinder. The valve may be movable to fill chambers of the crowd cylinder with fluid pressurized by the pump and to drain the chambers of the crowd cylinder to cause extension and retraction of the crowd cylinder. The hydraulic system may also have a dipper actuator located at an end of the crowd cylinder, and a passage extending through the crowd cylinder to communicate with the dipper actuator.Type: ApplicationFiled: January 23, 2013Publication date: July 24, 2014Applicant: CATERPILLAR INC.Inventor: David Thomas BIENFANG
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Patent number: 8770908Abstract: A support structure for a tilt cylinder of a machine that controls movement of an articulating implement may include a mounting plate, vertical support plates extending outwardly from a top surface of the mounting plate, and a central and side gussets connected to the top surface of the mounting plate and to the outer sides of the vertical support plates. The gussets assist in transitioning lateral or horizontal forces on the vertical support plates to the mounting plate and the end frame of the machine to reduce fatigue cracking at the points of connection of the vertical support plates to the mounting plate. The support structure may further include first and second lower support plates having top edges spaced from each other and connected to the bottom surface of the mounting plate, and bottom edges connected to each other so that the lower support plates and the mounting plate form a triangle in cross-section to further assist in transitioning the forces to the end frame.Type: GrantFiled: March 10, 2011Date of Patent: July 8, 2014Assignee: Caterpillar Inc.Inventors: Xiaoming Tan, Michael Sekulich, Allen Boyer, Robert Hunter, Sameer Rishipathak
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Publication number: 20140105715Abstract: A tilting system for an implement pivotally connected to a lift arm. The tilting system includes a tilt cylinder configured to provide a rotary movement to the implement. The tilting system includes a tilt lever pivotally connected to the tilt cylinder by a pivot pin E and to the implement by a pivot pin C. The tilting system further includes a tilt link pivotally connected to a lift arm by a pivot pin F, and to the tilt lever by a pivot pin D. An angle defined between a line DE connecting the pivot pins D and E and a line DC connecting the pivot pins D and C, is in the range of 135 to 165 degrees.Type: ApplicationFiled: October 12, 2012Publication date: April 17, 2014Applicant: Caterpillar Inc.Inventors: William C. Tracy, Karl Canner, Wayne E. Harshberger, II, Jason J. Hagedorn, Darren M. Schambach, James White
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Publication number: 20140086716Abstract: An industrial machine includes a frame supporting a boom, an elongated member movably coupled to the boom, an attachment, a conduit, and a reel supporting at least a portion of the conduit. The boom includes a first end coupled to the frame and a second end opposite the first end. The elongated member is movably coupled to the boom and includes a first end and a second end. The attachment is coupled to the second end of the elongated member. The conduit extends between the frame and the attachment. The reel is rotatably supported on a support shaft. The reel rotates about an axis of rotation to reel in and pay out the conduit as the elongated member moves relative to the boom.Type: ApplicationFiled: September 20, 2013Publication date: March 27, 2014Applicant: Harnischfeger Technologies, Inc.Inventor: Jason Knuth
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Patent number: 8620536Abstract: Controlling a digging operation of an industrial machine that includes a dipper, a crowd motor drive, and a controller. The crowd motor drive is configured to provide one or more control signals to a crowd motor, and the crowd motor is operable to provide a force to the dipper to move the dipper toward or away from a bank. The controller is connected to the crowd motor drive and is configured to monitor a characteristic of the industrial machine, identify an impact event associated with the dipper based on the monitored characteristic of the industrial machine, and set a crowd motoring torque limit for the crowd motor drive when the impact event is identified.Type: GrantFiled: March 14, 2013Date of Patent: December 31, 2013Assignee: Harnischfeger Technologies, Inc.Inventors: Joseph Colwell, William Hren, David Wendt, Michael Linstroth
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Publication number: 20130343852Abstract: A tractor having a front end loader has a bucket with tines attached to the underside of the bucket. The front end loader is used to raise/lower and tilt the bucket in a conventional fashion in order to position the tines where they can gather trash by driving the tractor forwardly towards the trash. The trash can be picked up by first tipping the front end of the bucket up, which tips the bottom of the tines up as well. Secondly, the bucket, tines and trash can then be lifted using the front end loader. Thirdly, the tractor can then be driven to a place where the trash is to be dumped and fourthly, the bucket can be tipped so the front end of the bucket and thereby the bottom of the tines are tipped backwardly and upwardly to cause the trash to fall out of the tines.Type: ApplicationFiled: June 26, 2012Publication date: December 26, 2013Inventor: Dennis L. Pinkston
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Patent number: 8571766Abstract: Systems, methods, devices, and computer readable media for controlling a digging operation of an industrial machine that includes a dipper and a crowd drive. A method includes determining an acceleration associated with the industrial machine, determining a crowd retract factor based on the acceleration, comparing the crowd retract factor to a threshold crowd retract factor, setting a crowd speed reference and a crowd retract torque for the crowd drive for a period of time based on the comparison of the crowd retract factor to the threshold crowd retract factor.Type: GrantFiled: January 15, 2013Date of Patent: October 29, 2013Assignee: Harnischfeger Technologies, Inc.Inventors: Joseph Colwell, William Hren, David Wendt, Michael Linstroth
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Patent number: 8545163Abstract: Positional relationship among the first link support shaft (85), the second link support shaft (86), the first arm support shaft (88) and the second arm support shaft (89) is set such that an upper portion of the first lift link (81) comes into substantial agreement with a rear end of the machine body (1), when the upper free end of the first lift link (81) is pivoted maximally rearward in the course of transition of the arm (77) from a lowermost state realized lifting down the arm (77) to an uppermost state realized by lifting up the arm (77).Type: GrantFiled: March 23, 2009Date of Patent: October 1, 2013Assignee: Kubota CorporationInventors: Toyoaki Yasuda, Masanori Fujino, Toshihiko Takemura, Yasuo Nakata, Yoshitaka Matsubara, Yoshihiro Ueda, Yuuki Takano, Yusuke Kawai, Ryohei Sumiyoshi, Hiroyuki Anami, Naoya Muramoto, Kenji Mitsui, Youhei Kawano, Takeshi Ikumura
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Publication number: 20130195594Abstract: A mining shovel including a base, a boom, a first member moveably coupled to the boom, a bucket, and a pivot actuator. The base includes a hoist drum for paying out and reeling in a hoist rope. The boom includes a first end coupled to the base and a second end opposite the first end. The hoist rope extends over the second end of the boom. The first member includes a first end and a second end. The bucket is pivotably coupled to the second end of the first member. The pivot actuator moves the bucket relative to the second end of the first member, and the pivot actuator includes a first end coupled to the first member.Type: ApplicationFiled: January 31, 2013Publication date: August 1, 2013Applicant: HARNISCHFEGER TECHNOLOGIES, INC.Inventor: Harnischfeger Technologies, Inc.
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Publication number: 20130195593Abstract: A mining shovel adapted to dig a bank of material includes a boom having an end, a hoist rope extending over the end of the boom, an elongated member movably coupled to the boom, a dipper for engaging the bank of material, a bail assembly, and a pitch brace. The member includes a first end and a second end. The dipper is coupled to the second end of the member and includes a digging edge. The bail assembly includes a first end pivotably coupled to the dipper and a second end coupled to the hoist rope passing over the boom. The pitch brace includes a first end pivotably coupled to the bail assembly and a second end pivotably coupled to the member.Type: ApplicationFiled: January 31, 2013Publication date: August 1, 2013Applicant: HARNISCHFEGER TECHNOLOGIES, INC.Inventor: Harnischfeger Technologies, Inc.
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Publication number: 20130078069Abstract: A scoop assembly is disclosed for a wheel dozer. The scoop assembly includes a frame that includes right and left lift arms that may be coupled together by a distal cross beam. The lift arms include proximal portions that extend between the two cross beams and a distal hook-shaped portion that extends forward beyond the distal cross beam. The distal hook-shaped portions pivotally connect to the bucket. The distal cross beam provides a place for the location of a bracket that supports a single dump cylinder that extends upward into a central pocket disposed in the back of the bucket. The dump cylinder is protected from debris due to its raised position and placement inside a centralized pocket that does not experiment the flow of debris materials.Type: ApplicationFiled: September 23, 2011Publication date: March 28, 2013Applicant: CATERPILLAR, INC.Inventor: Michael P. May
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Publication number: 20130074377Abstract: A system to stabilize a construction vehicle having a frame and a pair of stabilizing legs with ground-engaging shoes at the ends of the legs. The stabilizing legs pivotally connect to the frame on substantially opposing sides, so that the stabilizing legs pivot upwards to a stowed position and pivot downwards to a stabilizing position where the shoe engages the ground. Further, the stabilizing legs telescope between a retracted position and an extended position. The retracted position locates the shoe closer to the vehicle and the extended position locates the shoe further from the vehicle. A pair of hydraulic cylinders connect to the respective stabilizing legs to power the telescopic movement of the stabilizing legs between the retracted position and extended position.Type: ApplicationFiled: November 21, 2012Publication date: March 28, 2013Inventor: Joshua Colbert
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Patent number: 8355847Abstract: Systems, methods, devices, and computer readable media for controlling a digging operation of an industrial machine that includes a dipper and a crowd drive. A method includes determining an acceleration associated with the industrial machine, determining a crowd retract factor based on the acceleration, comparing the crowd retract factor to a threshold crowd retract factor, setting a crowd speed reference and a crowd retract torque for the crowd drive for a period of time based on the comparison of the crowd retract factor to the threshold crowd retract factor.Type: GrantFiled: August 31, 2011Date of Patent: January 15, 2013Assignee: Harnischfeger Technologies, Inc.Inventors: Joseph Colwell, William Hren, David Wendt, Michael Linstroth
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Publication number: 20120251283Abstract: A construction equipment machine of the loader type is provided and has at least a chassis, a traction arrangement and a loader arrangement. The loader arrangement includes a loader boom structure which is controlled through a two way boom hydraulic cylinder system, and a boom suspension system through which a lift-side of the boom cylinder system may be connected to a hydraulic pressurized accumulator while the drop-side of the boom cylinder system is connected to a tank return line. The tank return line has a flow limiter for limiting the flow of hydraulic oil in the direction from the drop-side of the boom cylinder system to the tank.Type: ApplicationFiled: December 17, 2009Publication date: October 4, 2012Applicant: VOLVO COMPACT EQUIPMENT SASInventors: Pierre Violland, Patrick Laporte
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Publication number: 20120201640Abstract: The disclosure relates to a mobile working machine with a control device, comprising a working arm, and methods for controlling the operating point of a working arm of a mobile working machine. According to the disclosure, the mobile working machine with the control device, comprising a working arm, has a working arm, a first end of which is hinged to a superstructure of the working machine. A tool is movably arranged on a second end of the working arm at an operating point. At least one first inclination sensor lies on the superstructure and at least one second inclination sensor lies on the working arm. In addition, at least one hydraulic cylinder is provided for changing the position of the operating point, said cylinder being hinged between the superstructure and the working arm.Type: ApplicationFiled: August 4, 2010Publication date: August 9, 2012Applicant: Robert Bosch GmbHInventors: Soenke Jessen, Steffen Klein
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Patent number: 8226344Abstract: An angle formed on a side of a bucket by a first line segment that connects a first pivot region of a bell crank relative to a boom and a second pivot region of the bell crank relative of a connecting link and a second line segment that connects the first pivot region and third a pivot region of the bell crank relative to a tilt cylinder is no more than 206.5°. An angle formed by the second line segment and a line segment that connects the third pivot region and fourth a pivot region of the tilt cylinder relative to a structural body is, in a fork-attached state, no more than 72.3°. When a pivot region of the fork relative to the boom is substantially 1.5 m from the ground, a lower end of the bell crank is located higher than a lower end of the fork.Type: GrantFiled: July 31, 2006Date of Patent: July 24, 2012Assignee: Komatsu Ltd.Inventors: Masashi Osanai, Toru Shiina
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Publication number: 20120171005Abstract: A work vehicle includes a motor associated with selectable movement of a frame by a first operator control. The frame structurally carries a cab structure and a manipulating structure associated with an implement for performing work. The manipulating structure is selectably movable by a second operator control located in the cab structure. All control functions associated with positioning the implement with respect to three different rotational axes are manipulable using the second operator control.Type: ApplicationFiled: January 5, 2011Publication date: July 5, 2012Inventor: Brady LEWIS
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Publication number: 20110274528Abstract: A loader for a work vehicle comprises a lift arm, a bucket, a bucket linkage, and a hydraulic bucket cylinder. The bucket and the linkage are pivotally attached to the lift arm. The linkage comprises a first link and a second link, which are pivotally attached to the bucket. The bucket cylinder is pivotally attached to the first and second links and the bucket and operable to pivot the bucket relative to the lift arm. The linkage comprises a debris guard substantially obstructing a space defined between the first and second links and between the bucket cylinder and the bucket.Type: ApplicationFiled: January 28, 2009Publication date: November 10, 2011Inventors: Robert R. Cate, Dennis A. Brimeyer, Jessica A. Hill
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Patent number: 7993091Abstract: In a wheel loader 3, an angle formed by a first line segment L1 connecting a pivot position Y on a boom 10 of a bell crank 11 and a pivot position X on a connecting link 13 and a second line segment L2 connecting the pivot position Y on the boom 10 of the bell crank 11 and a pivot position W on a tilt cylinder 12 is set in a range from 0 degree to 180 degrees on the attachment 20, 30 side, the attachment can be selected from a plurality of types such as a bucket 20 and a fork 30 for use, and each of the attachment 20, 30 that is different from each other has a different pivot position on the connecting link 13 relative to the pivot position on the boom 10 as a reference point.Type: GrantFiled: July 29, 2004Date of Patent: August 9, 2011Assignee: Komatsu Ltd.Inventors: Masashi Osanai, Matsuo Nose
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Publication number: 20110168417Abstract: Disclosed is multi-use attachment device that is easily attached to and removed from an all-terrain vehicle (ATV) or a utility-terrain vehicle (UTV). The device comprises a lift frame including an inner lift frame, an outer lift frame, a first pivotal axis and a second pivotal axis, and is configured to pivot about the first pivotal axis with a first electrical device, and has a second electrical device mounted on the lift frame to pivot the outer lift frame with respect to the inner lift frame. One end of the multi-use attachment is attached to the ATV/UTV, and the other end is attached to an implement such as a loader bucket, a pallet fork, or a plow blade. Some embodiments of the multi-use attachment use tension devices both for pivoting the lift frame about the first pivotal axis and for pivoting the outer lift frame with respect to the inner lift frame about the second pivotal axis.Type: ApplicationFiled: January 10, 2011Publication date: July 14, 2011Inventor: Brian A. Benesch
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Patent number: 7967547Abstract: In a work machine 1, an angle ? formed by a first line segment L1 connecting a pivot position Y of a bell crank 11 on a boom 10 and a pivot position X of the bell crank 11 on a connecting link 13, and a second line segment L2 connecting the pivot position Y of the bell crank 11 on the boom 10 and a pivot position W of the bell crank 11 on the tilt cylinder 12 on a bucket 20 side is 176 (deg) or less, an angle ? formed by the second line segment L2 and a line segment L3 connecting the pivot position W of the bell crank 11 on the tilt cylinder 12 and a pivot position Z of the tilt cylinder 12 on a working structure is 72.3 (deg) or less, and, in a case where the bucket 20 is set at a top position, a lowering angle ? of a front end of a lower surface of the bucket 20 is 4.5 (deg) or less.Type: GrantFiled: January 30, 2006Date of Patent: June 28, 2011Assignee: Komatsu Ltd.Inventor: Masashi Osanai
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Publication number: 20110150616Abstract: An assembly for controlling the angle of an implement on an earth-moving machine. The assembly includes an upper control arm, a lower control configured to mechanically interface with an implement; a rocker arm configured to pivotably couple the lower control arm to the upper control arm.Type: ApplicationFiled: December 17, 2009Publication date: June 23, 2011Applicant: Caterpillar IncInventors: William C. Tracy, Michael R. Stallings
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Publication number: 20110091308Abstract: A loader and a control system for a loader provide for monitoring the position of a part of the implement carried by the loader. The loader has a body with left and right upright tower portions, and a loader drive system including ground engaging drive elements. Left and right interconnected lift arm assemblies each have an implement lift arm pivotally connected with a corresponding tower portion of the body at a lift arm pivot point. A lift actuator is connected between the body and the lift arm. The implement is pivotally connected with the lift arm assemblies about an implement pivot axis. The lift arm pivot point and the implement pivot axis in side elevation define a straight reference line. At least one implement tilt actuator is connected between at least one of the lift arm assemblies and the implement. A position sensor is mounted on the body at the level of, or above, the lift arm pivot points.Type: ApplicationFiled: December 23, 2010Publication date: April 21, 2011Inventor: Mark Nichols
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Publication number: 20110052359Abstract: An implement attachment for a motor vehicle is disclosed. The implement attachment includes a hitch assembly and an implement assembly. The hitch assembly includes a first locking structure and a second locking structure, the first locking structure constructed for removably coupling the hitch assembly to the vehicle. The implement assembly includes an interlock structure that mates with the second locking structure of the hitch assembly to removably couple the implement assembly to the hitch assembly. The implement assembly includes an implement with a working surface that defines a top edge. The implement assembly is pivotally tiltable relative to the motor vehicle along a plane extending from a right side of the vehicle to the left side. The implement assembly is pivotally tiltable about a pivot point located above the top edge of the working surface of the implement.Type: ApplicationFiled: April 28, 2010Publication date: March 3, 2011Inventor: Clint Nesseth
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Publication number: 20100239405Abstract: A boom extension apparatus is provided for a prime mover such as a skid-steer loader or vehicle wherein the rearward end of the boom extension apparatus is quickly and easily attachable to the forward ends of the boom arms of the skid-steer loader. The forward end of the boom extension apparatus is quickly and easily attachable to the rearward end of an implement such as a bucket, bale spear, etc.Type: ApplicationFiled: March 20, 2009Publication date: September 23, 2010Inventor: Vincent E. Tesinsky