Tilting Patents (Class 414/697)
  • Patent number: 10731321
    Abstract: 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: Grant
    Filed: March 9, 2020
    Date of Patent: August 4, 2020
    Assignee: MAC Cormpany, LLC
    Inventors: Thomas G Lykken, Peter J Christianson
  • Patent number: 10662619
    Abstract: 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: Grant
    Filed: June 2, 2016
    Date of Patent: May 26, 2020
    Assignee: YANMAR CO., LTD.
    Inventor: Kunihiko Sakamoto
  • Patent number: 10533303
    Abstract: 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: Grant
    Filed: March 15, 2016
    Date of Patent: January 14, 2020
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Yoshiyuki Tsuchie, Hiroshi Sakamoto, Hidekazu Moriki, Yasutaka Tsuruga
  • Patent number: 10352019
    Abstract: 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: Grant
    Filed: May 25, 2017
    Date of Patent: July 16, 2019
    Assignee: KUBOTA CORPORATION
    Inventors: Robert Stewart Boyd, Daniel Underwood, Carlos Cabrera
  • Patent number: 10072391
    Abstract: 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: Grant
    Filed: September 23, 2015
    Date of Patent: September 11, 2018
    Assignee: KUBOTA CORPORATION
    Inventors: Toshihiko Takemura, Shunichiro Mori, Hiroshi Koyamatsu, Hayato Ido, Shigeki Morishita
  • Patent number: 10029896
    Abstract: 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: Grant
    Filed: December 17, 2014
    Date of Patent: July 24, 2018
    Assignee: Caterpillar Inc.
    Inventors: Xiaoming Tan, Michael Anthony Calamari, Michael Scott Sekulich, Bradley Robert Lancaster
  • Patent number: 10030676
    Abstract: 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: Grant
    Filed: April 23, 2015
    Date of Patent: July 24, 2018
    Assignee: HYSTER—YALE GROUP, INC.
    Inventors: Maurice Sifri, Chikka Rao, Tory Hoff
  • Patent number: 9719228
    Abstract: 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: Grant
    Filed: March 24, 2015
    Date of Patent: August 1, 2017
    Assignee: DEERE & COMPANY
    Inventors: Nilesh Kumbhar, Travis A. Shekleton, Kyle T. Martin
  • Patent number: 9719531
    Abstract: 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: Grant
    Filed: June 5, 2013
    Date of Patent: August 1, 2017
    Assignee: ZF Friedrichshafen AG
    Inventors: Jan-Frederik Kuhn, Timo Maise, Marcus Hiemer, Stephan Schinacher, Sven Bieber
  • Patent number: 9458606
    Abstract: 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: Grant
    Filed: January 31, 2013
    Date of Patent: October 4, 2016
    Assignee: DEERE & COMPANY
    Inventors: Steven J. Ditzler, Peter D. Zach, James F. O'Halloran, Jonathan R. Hunt
  • Patent number: 9340956
    Abstract: 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: Grant
    Filed: August 22, 2013
    Date of Patent: May 17, 2016
    Assignee: CNH Industrial America LLC
    Inventors: Brad M. Dilts, Emory L. Frey, Curtiss M. Lee, John M. Moffitt, Lance A. Taylor, Scott M. Timken
  • Patent number: 9341198
    Abstract: 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: Grant
    Filed: May 17, 2012
    Date of Patent: May 17, 2016
    Assignee: Hitachi Construction Machinery Co., Ltd.
    Inventors: Tsuyoshi Nakamura, Kazunori Nakamura, Yasuo Okano, Kouji Ishikawa, Kensuke Sato, Hiroyuki Azuma, Mitsuhiko Kanehama, Yusuke Kajita
  • Patent number: 9234327
    Abstract: 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: Grant
    Filed: July 24, 2014
    Date of Patent: January 12, 2016
    Assignee: DEERE & COMPANY
    Inventors: Jody A. Oickle, Henry Friesen, Radu T. Guja
  • Patent number: 9193522
    Abstract: 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: Grant
    Filed: June 8, 2012
    Date of Patent: November 24, 2015
    Inventor: Oliver Dixon
  • Patent number: 9051716
    Abstract: 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: Grant
    Filed: August 13, 2012
    Date of Patent: June 9, 2015
    Assignee: Paladin Brands Group, Inc.
    Inventors: Adam Bricker, Anthony Seda, Robert Sikorski
  • Publication number: 20150098786
    Abstract: 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: Application
    Filed: October 3, 2013
    Publication date: April 9, 2015
    Applicant: Caterpillar Inc.
    Inventor: Michael Subrt
  • Publication number: 20150083447
    Abstract: 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: Application
    Filed: November 24, 2014
    Publication date: March 26, 2015
    Inventor: Brady Lewis
  • Patent number: 8939699
    Abstract: 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: Grant
    Filed: April 19, 2011
    Date of Patent: January 27, 2015
    Assignee: Sumitomo Heavy Industries, Ltd.
    Inventor: Koichiro Tsukane
  • Publication number: 20140365081
    Abstract: 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: Application
    Filed: November 2, 2011
    Publication date: December 11, 2014
    Applicant: J.C. Bamford Excavators Limited
    Inventor: Edward Owston
  • Patent number: 8827625
    Abstract: 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: Grant
    Filed: August 25, 2010
    Date of Patent: September 9, 2014
    Assignee: CNH Industrial America LLC
    Inventor: Joseph M. Biggerstaff
  • Patent number: 8807909
    Abstract: 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: Grant
    Filed: October 12, 2012
    Date of Patent: August 19, 2014
    Assignee: Caterpillar Inc.
    Inventors: William C. Tracy, Karl Canner, Wayne E. Harshberger, II, Jason J. Hagedorn, Darren M. Schambach, James White
  • Publication number: 20140205412
    Abstract: 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: Application
    Filed: January 23, 2013
    Publication date: July 24, 2014
    Applicant: CATERPILLAR INC.
    Inventor: David Thomas BIENFANG
  • Patent number: 8770908
    Abstract: 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: Grant
    Filed: March 10, 2011
    Date of Patent: July 8, 2014
    Assignee: Caterpillar Inc.
    Inventors: Xiaoming Tan, Michael Sekulich, Allen Boyer, Robert Hunter, Sameer Rishipathak
  • Publication number: 20140105715
    Abstract: 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: Application
    Filed: October 12, 2012
    Publication date: April 17, 2014
    Applicant: Caterpillar Inc.
    Inventors: William C. Tracy, Karl Canner, Wayne E. Harshberger, II, Jason J. Hagedorn, Darren M. Schambach, James White
  • Publication number: 20140086716
    Abstract: 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: Application
    Filed: September 20, 2013
    Publication date: March 27, 2014
    Applicant: Harnischfeger Technologies, Inc.
    Inventor: Jason Knuth
  • Patent number: 8620536
    Abstract: 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: Grant
    Filed: March 14, 2013
    Date of Patent: December 31, 2013
    Assignee: Harnischfeger Technologies, Inc.
    Inventors: Joseph Colwell, William Hren, David Wendt, Michael Linstroth
  • Publication number: 20130343852
    Abstract: 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: Application
    Filed: June 26, 2012
    Publication date: December 26, 2013
    Inventor: Dennis L. Pinkston
  • Patent number: 8571766
    Abstract: 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: Grant
    Filed: January 15, 2013
    Date of Patent: October 29, 2013
    Assignee: Harnischfeger Technologies, Inc.
    Inventors: Joseph Colwell, William Hren, David Wendt, Michael Linstroth
  • Patent number: 8545163
    Abstract: 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: Grant
    Filed: March 23, 2009
    Date of Patent: October 1, 2013
    Assignee: Kubota Corporation
    Inventors: 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
  • Publication number: 20130195594
    Abstract: 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: Application
    Filed: January 31, 2013
    Publication date: August 1, 2013
    Applicant: HARNISCHFEGER TECHNOLOGIES, INC.
    Inventor: Harnischfeger Technologies, Inc.
  • Publication number: 20130195593
    Abstract: 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: Application
    Filed: January 31, 2013
    Publication date: August 1, 2013
    Applicant: HARNISCHFEGER TECHNOLOGIES, INC.
    Inventor: Harnischfeger Technologies, Inc.
  • Publication number: 20130074377
    Abstract: 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: Application
    Filed: November 21, 2012
    Publication date: March 28, 2013
    Inventor: Joshua Colbert
  • Publication number: 20130078069
    Abstract: 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: Application
    Filed: September 23, 2011
    Publication date: March 28, 2013
    Applicant: CATERPILLAR, INC.
    Inventor: Michael P. May
  • Patent number: 8355847
    Abstract: 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: Grant
    Filed: August 31, 2011
    Date of Patent: January 15, 2013
    Assignee: Harnischfeger Technologies, Inc.
    Inventors: Joseph Colwell, William Hren, David Wendt, Michael Linstroth
  • Publication number: 20120251283
    Abstract: 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: Application
    Filed: December 17, 2009
    Publication date: October 4, 2012
    Applicant: VOLVO COMPACT EQUIPMENT SAS
    Inventors: Pierre Violland, Patrick Laporte
  • Publication number: 20120201640
    Abstract: 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: Application
    Filed: August 4, 2010
    Publication date: August 9, 2012
    Applicant: Robert Bosch GmbH
    Inventors: Soenke Jessen, Steffen Klein
  • Patent number: 8226344
    Abstract: 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: Grant
    Filed: July 31, 2006
    Date of Patent: July 24, 2012
    Assignee: Komatsu Ltd.
    Inventors: Masashi Osanai, Toru Shiina
  • Publication number: 20120171005
    Abstract: 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: Application
    Filed: January 5, 2011
    Publication date: July 5, 2012
    Inventor: Brady LEWIS
  • Publication number: 20110274528
    Abstract: 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: Application
    Filed: January 28, 2009
    Publication date: November 10, 2011
    Inventors: Robert R. Cate, Dennis A. Brimeyer, Jessica A. Hill
  • Patent number: 7993091
    Abstract: 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: Grant
    Filed: July 29, 2004
    Date of Patent: August 9, 2011
    Assignee: Komatsu Ltd.
    Inventors: Masashi Osanai, Matsuo Nose
  • Publication number: 20110168417
    Abstract: 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: Application
    Filed: January 10, 2011
    Publication date: July 14, 2011
    Inventor: Brian A. Benesch
  • Patent number: 7967547
    Abstract: 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: Grant
    Filed: January 30, 2006
    Date of Patent: June 28, 2011
    Assignee: Komatsu Ltd.
    Inventor: Masashi Osanai
  • Publication number: 20110150616
    Abstract: 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: Application
    Filed: December 17, 2009
    Publication date: June 23, 2011
    Applicant: Caterpillar Inc
    Inventors: William C. Tracy, Michael R. Stallings
  • Publication number: 20110091308
    Abstract: 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: Application
    Filed: December 23, 2010
    Publication date: April 21, 2011
    Inventor: Mark Nichols
  • Publication number: 20110052359
    Abstract: 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: Application
    Filed: April 28, 2010
    Publication date: March 3, 2011
    Inventor: Clint Nesseth
  • Publication number: 20100239405
    Abstract: 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: Application
    Filed: March 20, 2009
    Publication date: September 23, 2010
    Inventor: Vincent E. Tesinsky
  • Publication number: 20100143086
    Abstract: An improvement of a loader work machine is disclosed. A machine body frame includes a frame body having a bottom wall and a pair or right/left side walls, and a pair of right/left support frame members connected to a rear end of the frame body. A cabin is mounted on the machine body frame. A transverse connecting member is disposed rearwardly of the cabin for connecting the pair of right/left support frame members to right/left sides thereof, respectively. A pair of right/left arms are disposed on right/left sides of the machine body frame, with base portions thereof being vertically pivotally supported to the pair of right/left support frame members, respectively. A pair of right/left arm cylinders are provided between the base portions of the arms and the rear portions of the machine body frame for lifting up/down the arms. A hood is provided at the rear end of the frame body and downwardly of the transverse connecting member between the pair of right/left support frame members, for housing an engine.
    Type: Application
    Filed: March 25, 2009
    Publication date: June 10, 2010
    Applicant: Kubota Corporation
    Inventors: 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
  • Publication number: 20090003984
    Abstract: 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: Application
    Filed: July 31, 2006
    Publication date: January 1, 2009
    Inventors: Masashi Osanai, Toru Shiina
  • Patent number: 6968241
    Abstract: The invention relates to a device for controlling the position for work devices (41) of mobile machines (40). The inventive device comprises a measuring device (1,2) for measuring an angle (?) which is formed between a level (42) that is determined by the position of the work device (41) and the direction of the gravitational force (g). The inventive device also comprises an angle transmitter (5) for predetermining an angle (??) which is formed between a level (42) that is determined by the position of the work device (41) and the direction of the gravitational force (g). The inventive device further comprises a controller (3, 4, 6–16) for controlling the angle (?) between the level (42) of the work device (41) and the direction of the gravitational force (g) in such a way that the measured angle (?) matches the predetermined angle (??).
    Type: Grant
    Filed: December 28, 2000
    Date of Patent: November 22, 2005
    Assignee: Brueninghaus Hydromatik GmbH
    Inventors: Reinhard Vonnoe, Michael Brand
  • Patent number: 6957705
    Abstract: A Z-bar loader linkage having a floating bell crank. A boom is pivotally mounted to a loader frame at one end and an attachment at the other end. The bell crank is pivotally mounted on leveling links extending forwardly from the loader frame. The drive end of the bell crank is provided with an attachment link that extends from the bell crank to the attachment for controlling the angular position of the attachment. A guide link extends between the attachment link and the boom.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: October 25, 2005
    Assignee: Deere & Company
    Inventors: David Michael O'Brien, Gregory Keith Werner, Michael Dean Worley, George Madsen Robertson, Dusan John Hvolka