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7556469 |
Revolving-frame structure of construction machinery
A swivel frame structure for a hydraulic excavator, said swing frame structure being to be arranged in a swing upperstructure 21 , has a center frame 1 composed of side plates 6,7 and a...
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7273341 |
Tractor with a front loader and a backhoe attachable thereto
A tractor has a vehicle frame with a pair of right and left elongate frame members spaced from each other and extending in a longitudinal direction and interconnected in intermediate positions by a...
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7140829 |
Device for displacing a revolving structure on a chassis and vehicle, e.g. a digger, having said revolving structure displacement
The operating pressure for the hydraulic drive means ( 15; 26 ) is generated in the chassis ( 2 ) of the vehicle ( 1 ). A revolving structure ( 3 ) is arranged on the chassis, said revolving...
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7001135 |
Construction machine
In a construction machine having a working attachment, an operator's seat disposed on one side of a machine body, a devices receptacle portion disposed on the other side, and an operating member...
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6886277 |
Small swivel type working vehicle
A small swivel type working vehicle includes a running device ( 4 ), a swivel base ( 2 ) mounted on the running device ( 4 ) to be swivelable about a vertical swivel axis (X), a driver's seat ( 5 )...
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6648582 |
Boom lock
A boom lock having an actuator and a hook assembly locks a boom of a work vehicle to a swing frame. The hook assembly is pivotally coupled to the swing frame and comprises two hooks and an actuator...
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6409457 |
Work vehicle
The invented vehicle includes a chassis, a cabin mounted on a first side of the chassis on a forward portion thereof, and a plurality of wheels coupled to the chassis to movably support the...
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6322104 |
Excavator frame and method of assembly
An excavator undercarriage frame is made to reduce the amount of machining necessary for supporting a swing bearing and ring gear on which an upper swing platform including the cab and operator's...
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6290009 |
Swivel working vehicle
When a conventional swivel working vehicle is constructed such that a real part of a swivel body is not extended beyond a traveling device in order to improve an operability at a small site, a...
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6173973 |
Forestry machine swing-house leveling mechanism
A swing-to-tree feller buncher has its boom swing-house assembly adjustably supported from its track carriage frame by a leveling mechanism which includes a front link, a rear link, and a pair of...
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6035736 |
Adjustable pinion gear mounting arrangement
A pinion gear rotatively connected to a drive motor is radially movable relative to a swing gear of a work machine by an eccentric member to adjust the backlash between the pinion and swing gears....
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5975833 |
Swing type hydraulic excavator
An upper cover has a curved portion formed in its end portion on the side near a work front for avoiding interference with the work front. The curved portion comprises a recessed surface having a...
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5967737 |
Backhoe boom lock
A backhoe boom lock for locking the boom to the swing frame during transporting and craning operations. The boom is provided with two upwardly open hooks that project on either side of the swing...
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5647722 |
Dual cylinder actuated boom arm
A linkage mechanism which allows a substantially 180° pivoting motion of a frame, and hence a boom arm secured to the frame, around the frame's pivot axis includes a mast to which the frame is...
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5647721 |
Miniature, portable, self-contained power machine
Disclosed herein is a miniature, portable, self-contained power machine for handling materials, comprising, a rigid frame providing the base structure for all components of said machine, a means of...
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5434785 |
System for automatically controlling quantity of hydraulic fluid of an excavator
A control system for controlling quantity of hydraulic fluid of an excavator. The control system of this invention provides a method for controlling the quantity of the hydraulic fluid supplied to...
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5337847 |
Four-way levelling mechanism for off-road vehicle
A four way tilt mechanism maintaining the superstructure of an off-road vehicle generally horizontal while the vehicle is working on uneven terrain is disclosed. The tilt mechanism is very robust...
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5244337 |
Mobile shovel excavator
In the case of an excavator, particularly a shovel excavator, the superstructure is held on an undercarriage so that it can be swivelled around a first vertical axis. A jib is held on the...
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5193971 |
Mobile hydraulic conveyor
This invention relates to an improvement over a prior art mobile hydraulic conveyor apparatus which is mounted on the rear end of a truck for both vertical and lateral pivoting, as well as vertical...
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5140760 |
Arrangement for rotator units
Arrangement for rotator units, especially those which are intended for rotation of excavator buckets. It comprises a motor (27) which, together with a transmission (26, 29) which is coupled to a...
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5120186 |
Crane attachment for loading machines
A self-contained, full-function, crane attachment for loading machines that is capable of quick release coupling with the standard bucket attachment mechanism of conventional loaders. The...
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5106256 |
Step device in miniature shovel car
A step device in a miniature shovel car includes a vehicle body, a working boom mounted to a front portion of the vehicle body, a boom cylinder for vertically pivotably operating the boom, a swing...
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5087168 |
Tilting device for backhoe
A device is provided for tiltably connecting the boom section of a backhoe unit to the dipper section of the backhoe unit. The device includes a first member mountable to the dipper section so as...
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5064339 |
Backhoe boom lock
A backhoe loader has a rearward backhole mechanism having a swing frame pivotally connected to a tractor main frame on a pair of vertical pivots. A backhoe boom is swingable on a transverse pivot...
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5061149 |
Fork lift vehicle having a telescopic boom with an articulated jib section capable of vertical and horizontal swinging relative to the boom
An extendable boom fork lift vehicle is described wherein the boom and its actuator are positioned over the rear axle of the vehicle such that the weight of the frame between the front and rear...
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5044858 |
Vehicle with lateral moving lift
A lift vehicle for moving mine roof supports has a main drive section with a forward lift platform and a rearward articulated battery section. The articulating connection between the main section...
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5040428 |
Swing reduction gear assembly
A swing reduction gear assembly for a swing device which prevents admission of grease into the same and in which the pressing force of grease squeezed out from between mutually meshing teeth of a...
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4966240 |
Combination backhoe vehicle and bulldozer apparatus
A bulldozer apparatus for a working vehicle comprising a vertically pivotable arm assembly, and a blade pivotable on a fore and aft axis extending along a center position of the vehicle. Two...
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4961371 |
Hydraulic circuit for a backhoe
A hydraulic circuit for a backhoe comprising a first multiple valve, a second multiple valve, and a confluence mechanism mounted between the first and second multiple valves. The first multiple...
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4960359 |
Demountable swing boom hoist for front end loaders
The subject device is an operational apparatus for front end loaders. The apparatus can be adapted directly onto the front end loader linkage arms at the attaching points that normally a bucket is...
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4943205 |
Earth moving machine
An earth moving machine comprises an earth moving tool, a plurality of drive elements arranged to move the earth moving tool in different directions, and a control unit operative for actuating the...
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4938023 |
Swing-frame motor flow and sensed load pressure control system for hydraulic excavator
A fluid pressure control system comprising a first selector valve for controlling the action of a first actuator, a second selector valve for controlling the action of a second actuator, a first...
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4899841 |
Leveling assembly for a work vehicle
The present invention is directed to a leveling assembly for a work vehicle. The leveling assembly comprises upper and lower plates that are pivotally connected to one another about a horizontal...
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4887938 |
Controllable locking apparatus for implement carrying work vehicle
On a work vehicle having a support, an implement carrying swing frame connected to the support by a first pivot pin apparatus, and an elevatable boom connected to the swing frame by a second pivot...
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4799850 |
Material handling vehicle for use in a mine
A self-propelled vehicle maneuverable in an underground mine includes an elongated body having a forward end portion with a boom assembly mounted thereon. The boom assembly includes a pair of boom...
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4779364 |
Device for a load carrying unit
Device (14) for a load carrying unit (12), intended to interconnect the load carrying unit (12) and a supporting member (10) for the load carrying unit (12), arranged to cause a rotary movement for...
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4775286 |
Hydraulic hose routing for tractor-mounted backhoe
An improved swingable tractor-backhoe interconnection for a tractor-mounted backhoe having a pair of vertically-spaced articulation means along the axis forming an axially-aligned void space...
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4705450 |
Single engine excavator with remote control
A material handling vehicle is provided which includes a lower truck chassis and an upper material handling structure pivotally supported by the lower chassis, all functions of which vehicle are...
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4693384 |
Excavator boom derrick
An articulated arm-type excavator machine has a boom which has a trolley track affixed onto its underside. A trolley member from which a pulley block can be suspended travels along this track, and...
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4692085 |
Material handling system
A vehicle has a steerable subframe articulated to the remainder of the vehicle, a set of lifting forks projecting forwardly from the subframe and supported thereon by a linkage permitting lifting,...
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4622860 |
Method and apparatus for swing gear and bearing assembly for power mining shovel
An improved swing gear for a power mining shovel which can be removed and replaced simply by partially separating the upper rotatable frame assembly from the lower stationary frame assembly and...
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4601626 |
Arrangement for swinging an attachment holder for the equipment of a hydraulic excavator
Arrangement for swinging an attachment holder for the equipment of a hydraulic excavator around an axis perpendicular to the platform plane of the upper carriage, in a working direction parallel to...
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4571146 |
Digging apparatus applicable to a bucket loader
A digging apparatus (5) attachable to a bucket loader e.g. a tractor loader (1) of the type used for smaller digging work, such as excavating trenches, e.g. in agriculture, park management or the...
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4571147 |
Shovel excavator with modified upper carriage design
A shovel excavator with an upper carriage pivoting unrestrictedly on an undercarriage and with an attachment holder (6) for a boom (8) pivoting laterally at the front. The pivot shaft (5) is...
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4561341 |
Hydraulic circuitry for a backhoe
A hydraulic circuitry for a backhoe in which a hydraulic motor for driving one of right and left crawlers and a hydraulic cylinder for vertically oscillating a working arm assembly are connected in...
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4552503 |
Excavating vehicle
An excavating vehicle according to the present invention comprises an excavating apparatus rotated by a hydraulic actuator, said excavating apparatus being stopped automatically and smoothly at...
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4540332 |
Swivel device
A swivel device for supporting a swivel unit thereon, including a hollow main frame and a comparatively slender rotatable shaft disposed upright within the hollow frame, connectable to the swivel...
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4531882 |
Stabilized load handling vehicle with orientable arm
A load handling vehicle having two mutually articulated chassis elements respectively carrying ground engaging wheels and a drive motor, the first chassis element carrying a prop located below the...
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4516655 |
Remote drive with powershift transmission
A remote driving system (40) for use on a material handling vehicle (10) having a rotatable upper structure (12) including means for driving said material handling vehicle (10) through powershift...
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4509895 |
Crowd drive assembly for power shovels
In a power shovel having a main support unit, a front end assembly operatively connected to the main support unit and a rope crowd system mounted on the main support unit and operatively connected...
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