| Patent Number |
Title Of Patent |
Date Issued |
| RE36405 |
Slide bearing assembly |
November 23, 1999 |
| The improved slide bearing assembly comprises at least a shaft and a bush that is formed of a porous iron-base sintered material and is characterized in that the bush is impregnated with a lubricant oil having a viscosity of 240-1500 cSt. The bearing assembly can be operated in slow- |
| D549738 |
Wheel loader |
August 28, 2007 |
|
| D549722 |
Graphic user interface for display for construction machine |
August 28, 2007 |
|
| D549721 |
Graphic user interface for display for construction machine |
August 28, 2007 |
|
| D437602 |
Hydraulic excavator |
February 13, 2001 |
|
| D410471 |
Large-sized excavator |
June 1, 1999 |
|
| D350294 |
Control unit for an ultrasonic flaw detector |
September 6, 1994 |
|
| D349464 |
Ultrasonic flaw detector system |
August 9, 1994 |
|
| 7433777 |
Engine protection system and method for construction machine |
October 7, 2008 |
| An engine protection system for a construction machine can individually diagnose the exhaust temperature specific to each cylinder of an engine corresponding to an engine revolution speed in order to find an abnormal condition of each engine cylinder in advance. A revolution speed sensor |
| 7398648 |
Travel control device for hydraulically driven vehicle and hydraulically driven vehicle |
July 15, 2008 |
| The present invention includes a hydraulic pump 10 driven by a prime mover 1, a traveling motor 12 driven with pressure oil delivered from the hydraulic pump 10, a control valve 11 for traveling that controls a flow rate of the pressure oil delivered from the hydraulic pump 10 to the |
| 7370475 |
Traveling hydraulic working machine |
May 13, 2008 |
| A modification torque .DELTA.T and a torque converter speed ratio e is computed from input and output revolution speeds of a torque converter 31. A first determination coefficient .alpha. corresponding to the speed ratio e, and a second determination coefficient .beta. corresponding to a |
| 7342486 |
Monitoring display device for use on construction machines |
March 11, 2008 |
| A monitoring display system for use within a cab of an automotive vehicular construction machine to display on a monitor screen picture images of a dead angle monitor camera as a through-view in the back ground of superimposed picture images of instrumentation data indicating reading |
| 7338114 |
Construction machine |
March 4, 2008 |
| A front side of a floor panel (15) is pivotally supported on a floor panel support mechanism (21), permitting tilting of the floor panel in a forward direction with respect to a revolving frame (5) by way of a tilting mechanism (30). The tilting mechanism (30) has a guide rail assemb |
| 7338081 |
Truck frame for a construction machine |
March 4, 2008 |
| A left fore leg (31) is formed to shape by a casting means, integrating an inner joint portion (31A), an outer joint portion (31B) and an intermediate tubular portion (31C) into an unitary tubular structure. In this case, a joining end (31A1) of the inner joint portion (31A) as well |
| 7338080 |
Truck frame for construction machine |
March 4, 2008 |
| A vehicular body oscillating mechanism (31) is provided between a frame (3) of an automotive vehicular body (2) and a stabilizer (18) thereby to sway the vehicular body (2) arcuately in a rightward and/or leftward direction about a pivot point (A) between right and left rear wheels (6, |
| 7318463 |
Self-propelling crusher |
January 15, 2008 |
| A self-propelled crushing machine comprises a crushing device 20; a hydraulic drive system including a crushing device hydraulic motor 21 for driving the crushing device 20, a first hydraulic pump 62 for driving the crushing device hydraulic motor 21, and an engine 61 for driving the |
| 7315144 |
AC drive apparatus, vehicle control apparatus, and power conversion method and vehicle control m |
January 1, 2008 |
| A motor is driven with variable frequency AC power converted from DC power, and an AC output power from the motor is converted to DC. In the conversion, an electromotive force regenerated by the motor is consumed by a plurality of resistors. When the consumption of the electromotive |
| 7293625 |
Operating lever device for construction machine and construction machine |
November 13, 2007 |
| At the front end of an operating lever constituted as a joystick lever, a grip that is not allowed to rotate relative to the operating lever is attached. At the front end of the grip, a rotary operating member to be used for prime mover rotation speed adjustment is rotatably mounted. The |
| 7293375 |
Crawler frame for construction machine |
November 13, 2007 |
| In a crawler frame in which legs in a center frame are formed from cast steel, a simple structure is achieved by reducing the number of components. To this end, the crawler frame, which has a center frame composed of a central frame section for supporting a swing bearing and legs loc |
| 7289895 |
Electronic control systems for construction machine |
October 30, 2007 |
| In an electronic control system for a construction machine, a governor control unit, an excavator body control unit, and an electric lever control unit are interconnected for transmission and reception of data. A universal communication line is connected to the governor control unit |
| 7287810 |
Construction machine |
October 30, 2007 |
| Right and left floor panel support mechanisms (40) and (46) are provided on a revolving frame (5) to support a front end of a floor panel (21) pivotally for permitting tilt-up and tilt-down of the floor panel (21). A tilting mechanism (54) is provided between the revolving frame (5) and |
| 7287188 |
Work machine maintenance system |
October 23, 2007 |
| A maintenance system of a hydraulic excavator (11) is provided with a maintenance monitoring device (21), a maintenance management server (12) for managing trouble information and operating information for each working machine, a model information server (13), and a service personnel |
| 7273124 |
Prime mover control device of construction machine |
September 25, 2007 |
| A prime mover control device of a construction machine according to the present invention includes a hydraulic pump (11) driven by a prime mover (40), a hydraulic traveling motor (5) driven with pressure oil output from the hydraulic pump (11), and a control valve (12) that controls a |
| 7272928 |
Hydraulic circuit of construction machinery |
September 25, 2007 |
| To keep one of three hydraulic pumps unaffected by variations in torque of the remaining hydraulic pumps when the three hydraulic pumps are used, displacements of the first and second hydraulic pumps are controlled based on their own delivery pressures P1,P2 and a pressure P3' obtained |
| 7265304 |
Joystick for electro-hydraulic control system |
September 4, 2007 |
| A joystick for an electro-hydraulic control system is provided with a rotary potentiometer having a pivotable arm. This pivotable arm is integrally arranged on a rotary shaft and pivots responsive to pivotal control of a joystick in a predetermined direction or a direction opposite t |
| 7258293 |
Wood crusher and wood treating method |
August 21, 2007 |
| A wood crusher has body frame; a crushing apparatus installed on the body frame and a crushing rotor rotated in a crushing chamber. A feed conveyor for conveying wood to be crushed is installed on one side of the body frame in the longitudinal direction thereof and includes a drive wheel |
| 7255088 |
Engine control system for construction machine |
August 14, 2007 |
| An engine control system includes pressure sensors (73, 74), position sensors (75, 76), pressure sensors (77, 78), a target revolution speed modification value computing unit (90), and a modification value adder (70r). A target revolution speed NR2 for use in control is computed based |
| 7243492 |
Inclined rotation control device of variable displacement hydraulic pump |
July 17, 2007 |
| A motion converting section (31) and a translation bar (33) of a feedback mechanism (30) are provided between a lateral side of a swash plate (21) and a control sleeve (26) of a regulator (24). When the swash plate (21) is in a neutral position, the motion converting section (31) is loca |
| 7228125 |
Construction machine management apparatus and construction machines management system |
June 5, 2007 |
| Assessment information needed to calculate a used vehicle assessment value of a hydraulic excavator 10 is input to a portable telephone 20 and is then transmitted from the portable telephone 20. The transmitted assessment information is received at a manufacturer's base station 40 at |
| 7222051 |
Working machine, failure diagnosis system for work machine and maintenance system for work machi |
May 22, 2007 |
| A working machine maintenance system having a plurality of working machines. A center server is provided that manages maintenance on the plurality of working machines by engaging in data exchange through bidirectional communication with each of the plurality of working machines via a |
| 7204519 |
Construction machine |
April 17, 2007 |
| A construction machine where an operating load is transferred to a location having good rigidity, thereby ensuring the strength of a vehicle body and increasing the load-withstanding strength in relation to running loads. The frame of the lower traveling body of the construction machine |
| 7204518 |
Construction machine |
April 17, 2007 |
| A construction machine where a load acting on a vehicle body during an operation is transferred to ensure the strength of the vehicle body, thereby improving reliability including welding reliability. In the construction machine, at least one of the height differences between an uppe |
| 7197872 |
Hydraulic circuit in work vehicle |
April 3, 2007 |
| A hydraulic circuit includes a control valve that controls flow of pressure oil from a hydraulic source to work hydraulic cylinders, an operating device that issues a command for drive of the control valve, valve devices each comprising a check valve, each provided in correspondence |
| 7180720 |
Failure detection device for hydraulic motor and hydraulic drive vehicle |
February 20, 2007 |
| A failure detection device for a hydraulic motor according to the present invention comprises a hydraulic pump 3 that is driven by a prime mover 2; a hydraulic motor 1 for traveling that is driven by hydraulic oil discharged from the hydraulic pump 3; a transmission 7 that is connected |
| 7175155 |
Control valve apparatus and pressure circuit |
February 13, 2007 |
| The control valve apparatus holds a seat valve member in a position seated on a valve seat to thereby prevent a backward flow even if the pressure in the inlet chamber side becomes lower than the pressure in the outlet chamber side. With a pilot control valve member is in a closed state, |
| 7171295 |
Construction device information processing system and construction device information processing |
January 30, 2007 |
| An intermediate server 6 or a main server 5 executes the steps of displaying a work site of a construction machine or a predetermined area regarding the work site on a subcontractor's personal computer 62, prompting an input for applying to an order for work of repair/replacement of |
| 7171188 |
Communication system for working machines |
January 30, 2007 |
| Provided is a communication system for working machines, which makes it possible to transmit desired messages from sites, where the working machines are arranged, to their corresponding work administration centers at timings as needed. When a mail switch 10 arranged on a working machine |
| 7162347 |
System and method for managing construction machinery |
January 9, 2007 |
| Construction machine management, permitting operation of a construction machine only under specified conditions and inhibiting its operation in case it is in a state incongruent with preset working conditions. Working conditions for each construction machine are set up by a working c |
| 7134985 |
Downhill speed controller |
November 14, 2006 |
| The invention is intended to provide a downhill speed control system which employs a method of setting a target vehicle speed in advance, thereby improving controllability when a vehicle runs down a slope, and giving an operator improved operability in setting of the target vehicle speed |
| 7127888 |
Hydraulic drive unit |
October 31, 2006 |
| A hydraulic drive unit is provided with a boom cylinder, an arm cylinder, a communication line communicating a rod chamber of the boom cylinder and a bottom chamber of the arm cylinder with each other, and a switching valve arranged on the communication line for communicating or shutting |
| 7127887 |
Oil pressure circuit for working machines |
October 31, 2006 |
| A joining directional control valve 13 is disposed to supply, to an arm cylinder 4, not only a hydraulic fluid delivered from a first hydraulic pump 1, but also a hydraulic fluid delivered from a second hydraulic pump 2 when an arm directional control valve 14 is driven. Respective deliv |
| 7124056 |
Information transmission device for construction machine |
October 17, 2006 |
| An information transmitting device to supply operation data of a machine as needed and without unnecessary data. The information transmitting device includes information control device 4, remote base station 9, transmission means, e.g. communication satellite 6, and selected data out |
| 7114591 |
Steering system for working truck |
October 3, 2006 |
| One of the mode lamps 38a, 38b and 38c of the mode indicator 38 corresponding to the current steering mode is turned on yellow and the other mode lamps are turned on green or turned off, thereby indicating whether front wheels 1, 1 and rear wheels 2, 2 are at neutral. A controller 39 |
| 7112032 |
Self-propelled working machine |
September 26, 2006 |
| Protective projections (26D) which are provided on cylinder mounting brackets (26) of a cargo handling tool (21) are arranged to project toward a vehicle body (2) from behind the cargo handling tool (21). When the vehicle body (2) is driven in reverse direction with a boom (12) in a |
| 7104548 |
Wheeled type working vehicle |
September 12, 2006 |
| The wheeled work vehicle according to the present invention has a link that links at least either one of the axles and provided at the front and the rear of the vehicle to a body, suspension hydraulic cylinders provided at the left side and the right side of the chassis to link the a |
| 7082756 |
Device for detecting failure of hydraulic motor, and hydraulic vehicle |
August 1, 2006 |
| A failure detection device for a hydraulic motor of the present invention comprises a hydraulic pump 3 that is driven by a prime mover 2; a hydraulic motor 1 that is driven by hydraulic oil discharged from the hydraulic pump 3; an abnormality detection device 35 that detects an abnor |
| 7079982 |
Working machine, trouble diagnosis system of working machine, and maintenance system of working |
July 18, 2006 |
| A working machine failure diagnosis method for performing a failure diagnosis by transmitting and receiving signals through communication devices provided at a working machine and at an information management center, according to the present invention, includes: a first step in which |
| 7076947 |
Hydraulic circuit of construction machinery |
July 18, 2006 |
| To keep one of three hydraulic pumps unaffected by variations in torque of the remaining hydraulic pumps when the three hydraulic pumps are used, displacements of the first and second hydraulic pumps are controlled based on their own delivery pressures P1, P2 and a pressure P3' obtained |
| 7070017 |
Rotating apparatus for construction machine |
July 4, 2006 |
| A swing mechanism for a construction machine having a grease bath seal. A grease bath can be disposed on a vehicular base carrier of the machine, and can be coupled with a swing frame. The grease bath seal can then act to prevent intrusion of pollutants or other foreign materials into th |
| 7050893 |
Method of detection of actual operating time of machinery deployed at construction sites, data c |
May 23, 2006 |
| The present invention is applied to a system comprised of large number of hydraulic excavators 1 deployed at construction sites and a base station 16. Each hydraulic excavator 1 is provided with a storage unit (memory 402), a control unit (CPU 401) for executing the work operation and |
