Abstract: A seat height and tilt adjustment apparatus includes first and second arms mounted between two structures. The first arm is pivotally attached to the first structure at the first pivot axis, and pivotally attached to the second structure. The second arm is pivotally attached to the first structure at a second pivot axis and pivotally attached to second structure. A linkage is pivotally attached to the first structure at a third pivot axis and pivotally attached to the first arm. A first actuator adjusts the distance between the two structures by simultaneously varying the distance between the first and second pivot axes and the distance between the first and third pivot axes. A second actuator varies the tilt of one structure relative to the other structure by varying the distance between the first and third pivot axes, while maintaining a constant distance between the first and second pivot axes.

Abstract: A canopy installation member for installing a canopy is firmly fixed on a rotation table frame. A rotary working machine having a working machine installed at the front of a rotation table frame (5), an engine (8) mounted on the rotation table frame (5), and a canopy detachably installed at the rear of the rotation table frame (5), wherein the engine (8) is placed and fixed on the rotation table frame (5) with a horizontally placed frame-like engine support member (31a, 31b) interposed between the engine and the frame, and a canopy installation member (32a, 32c) is raised at one side of the engine support member (31a, 31b).

Abstract: A washer tank is integrally formed with a front air duct, and the washer tank and the front air duct are installed within a cab. Thus, the washer tank can be installed within the cab by the use of spaces around the air duct. This arrangement makes it possible to install the washer tank within the cab in an unintrusive way and in the vicinity of a washer liquid spout nozzle without necessitating to provide an installation space exclusively for the washer tank.

Abstract: A pattern selector valve (32) is lodged in a seat supporting stool (22) which supports an operator's seat (23) thereon, with a switch lever (32B) at a front side of the seat supporting stool. An operator can easily check out the position of the switch lever (32B) of the pattern selector valve (32) at the time of getting onto the operator's seat (23). Besides, the switch lever (32B) of the pattern selector valve (32) can be easily changed over to a different pattern position in the vicinity of the operator's seat (23). Check-out and change-over of the switch lever (32B) are facilitated and can be carried out in a secure manner under guidance of a pattern indicator (39) which is provided on a front cover (34).

Abstract: A slide door-carrying cab is provided which includes a slide door capable of forming a sufficient clearance between a rear portion of the cab and a back of an operators seat, reclining the back at a sufficient angle, and giving an excellent comfortableness to an operator. The cab is provided in the position on a turntable which is offset from the center of a swinging movement thereof. An outer side portion of the cab has an outwardly bulging surface, and the slide door which moves along the curved surface is provided at a front section of the outer side portion. A rear portion of the cab is made of outwardly bulging two-dimensionally bent rear curved glass, and an outer edge of the rear portion is made to stay within a turning radius of an outer edge portion of the turntable.

Abstract: An air ride system is provided for tractors and other agricultural vehicles to provide a smooth operator ride. The system includes a bracket mounted to the transmission housing beneath the cab. A pair of shock absorbers and a pair of air bags extend between the bracket and the cab so as to absorb forces generated during travel of the vehicle over the ground. A laterally extending control rod provides anti-sway for the cab. Stop members limit the upward and downward travel of the cab relative to the transmission housing. A compressor and air lines allow air to be supplied to or removed from the air bags to adjust the ride.

Abstract: Some embodiments of the invention include a vehicle having a chassis and an engine supported by the chassis, the engine coupled to a drive train useful for propelling the vehicle. The vehicle may include a steering indexing assembly useful for positioning a steering control between a first steering position having the steering control positioned generally along the longitudinal centerline of the vehicle and a second steering position having the steering control positioned laterally of the longitudinal centerline of the vehicle.

Abstract: In order to enhance an operator's ability to control a work machine, an operator control station includes a seat assembly that is moveably mounted to a body of the work machine. The operator can control, at least in part, primary operator controllable aspects of the work machine by manipulating work machine operating controls attached to move with the seat assembly. The operator can monitor a work machine operating condition, at least in part, via a work machine operating condition display panel also attached to move with the seat assembly. In addition, the operator control station is interchangeable among a plurality of work machines of different types and sizes.

Abstract: To provide a box-shaped cab for a work machine, on which an operator operates the work machine, having a front surface portion, a rear surface portion, left and right side surface portions, a floor surface portion, and a ceiling surface portion, the cab for a work machine includes: a frame body having a pair of rear side structural members and a pair of lateral side structural members, a pair of rail members each having a vertical portion along the front surface portion and a horizontal portion along the ceiling surface portion; and a rectangular window frame being stored in the front surface portion or the ceiling surface portion, in which the vertical portions of the rail members are directly fixed to the lateral side structural members, and the horizontal portions of the rail members are fixed to the lateral side structural members via intermediate members.

Abstract: A swiveling work machine includes a swivel deck, an engine and an operator's seat which are mounted on the swivel deck and a protector for the operator's seat mounted erect on the swivel deck. The swivel deck mounts, at a rear portion thereof, a support frame having four post portions disposed around the engine. Two rear post portions of the support frame have upper ends thereof connected via a rear beam member. The rear beam member includes an attaching portion for the operator's seat protector to which portion the protector is attached.

Abstract: In a preferred embodiment of the present invention, a fuel tank is supported by the front surface of an operator's cabin. A center frame fixed to a body is coupled to the fuel tank via an external-force transmission part. The external-force transmission part permits vertical movement of the cabin relative to the center frame, while regulating lateral movement of the cabin relative to the center frame when an external force greater than a predetermined value is applied to the cabin.

Abstract: An upper frame structure for supporting a cab of construction machinery is disclosed, which can support the cap mounted on the upper frame when a vertical load, which is so much that the cab structure is plastically deformed, is applied to the upper frame. The upper frame structure includes a center frame having a bottom plate on which a swing ring gear is mounted and a pair of side plates vertically fixed to the bottom plate and on which operation devices are mounted; a left frame mounted on a left side of the center frame and having a left side frame on which the cab is mounted; reinforcement members each of which has one end fixed by welding to a side surface of the side plate of the center frame and the other end fixed by welding to a side surface of the left side frame, and on which the cap is mounted; and a fastening member installed on the bottom plate to offset a load vertically applied to the cab and a load laterally applied to the cab, and fixing the reinforcement member to the bottom plate.

Abstract: A loader control device for controlling a loader implement attached to a tractor is disposed in a position adjacent a driver's seat and does not obstruct the driver boarding or alighting from the tractor. For this purpose, the tractor includes a vehicle body; a loader implement detachably attached to a front part of the vehicle body; a driver's seat mounted on the vehicle body; a steering device disposed forwardly of the driver's seat; a step laid between the driver's seat and the steering device; rear wheel fenders at opposite lateral positions of the driver's seat; and a shifting unit disposed between the driver's seat and one of the rear wheel fenders; wherein a mounting unit for mounting a loader control device for controlling the loader implement is provided in a forward position of an upper surface of the one of the rear wheel fenders.

Abstract: With this construction machine, a lateral load applied to a right rear pillar of a cabin in construction machine rollover or the like is transmitted to a left rear pillar via a load-transmitting beam which is inclined downwardly to the right, and is received by a vertical rib of a center section constituting an upper frame. In addition, a short-column auxiliary pillar is provided in front of the right rear pillar and is connected to the right rear pillar with a connector so as to support the lateral load.

Abstract: There is provided an alternative construction of driver's cab (1) for a load-handling vehicle and in particular an alternative construction of door (5) for a driver's cab. The door (5) is pivotally mounted on one of the uprights (13) of the driver's cab (1) and does not protrude outwardly from the driver's cab when opened or closed. The door (5) is mounted so that it effectively pivots about its own substantially vertical plane. The door (5) is provided with a locking mechanism that allows the door to be secured in position relative the upright (13) without the need for additional locking members being mounted on another of the uprights (13) on the driver's cab. The construction of driver's cab is lightweight and compact and allows for a more simplified manufacture by virtue of the omission of additional components.

Abstract: An operator protective structure for a construction machine is designed to prevent a heavy object or a cabin of the construction machine deformed during the overturning or a drop collision from injuring a body of the operator. An operator protective structure includes a front supporting frame provided with a pair of front supporting rods vertically installed on one end of the upper frame, a rear supporting frame provided with a plurality of rear supporting rods vertically installed on the other end of the upper frame to encompass the cabin, and a top supporting frame defined by a pair of top supporting rods extended from an upper end of the front supporting frame to an upper end of the rear supporting frame and provided with a plurality of auxiliary beams between the top supporting rods.

Abstract: A rear support pillar is configured by combining plural plate members extending in the longitudinal direction of the support pillar to define a closed section. An end face of one of plate members adjacent to each other in the closed section is abutted against an inner surface of the other plate member and in this state the abutted portion of the plate members is fillet-welded throughout the overall length of each plate member.

Abstract: A bulldozer is provided with a boat shaped main frame and a substantially U-shaped gate frame as a frame structure that mounts a cap having a rollover protection structure (ROPS) and forms the skeleton of the bulldozer. The gate frame is installed on the upper portion of the main frame, has a pair of left and right columns that are disposed along a substantially vertical direction, and has a beam that connects the upper ends thereof. Mount units for mounting the cab and stopper units for firmly grasping the cab are arranged on the upper surface of the beam.

Abstract: A change-speed control system is provided for a utility vehicle having a stepless change-speed apparatus for speed-changing an engine output and transmitting the speed-changed output to a traveling unit. The system includes an engine speed governor for adjusting speed of the engine, an accelerator controller and a change-speed control linkage device for providing operative displacements in the stepless change-speed apparatus and the engine speed governor in association with an operation of the accelerator controller. The change-speed control linkage device sets an operation amount for the stepless change-speed apparatus and an operation amount for the engine speed governor in correlation with the operation amount of the accelerator controller, such that an acceleration ratio for the engine speed is greater than an acceleration ratio for the stepless change-speed apparatus until the engine reaches a predetermined speed and also the stepless change-speed apparatus reaches a predetermined speed.

Abstract: The present invention is a rotatable work machine that includes a lower frame assembly having a recessed area in which the operator portion of an upper frame assembly and power source are at least partially positioned. Further, a method of manufacturing and assembling the lower frame assembly enables various size configurations for the work machine. The method of manufacturing and assembling the work machine, along with the specific design and positioning of the various components therein, enhances stability, clearance, and operator visibility with reduced costs and complexity.

Abstract: There are provided: front supports provided vertically in front of a cabin on a rotating frame; a plurality of rear supports provided vertically and laterally with respect to each other behind the cabin on the rotating frame; a lateral frame for connecting the upper end portions of the rear supports; and an upper frame provided above the cabin to connect the lateral frame and the front supports at a position shifted leftward from a predetermined area where an attachment is raised and lowered, where one rear support is arranged behind a hoisting axis between vertical plates, while the other rear supports are arranged in rear of the cabin, and the lateral frame is arranged laterally across the vertical plates.

Abstract: A left support pillar includes a protective portion extending substantially vertically in front of a back rest of the operator seat so as to cover an operator seat sideways, a fixing portion fixed onto a rotating frame at a position behind the operator seat, and a connecting portion adapted to extend forward from the fixing portion and to be connected to a lower end of the protective portion. The protective portion is disposed within a predetermined range of a seating surface of the operator seat and is formed upward from a position lower than an upper end of the back rest.

Abstract: A work vehicle includes a vehicle frame and a roll-over protective structure mounted to the frame. The roll-over protective structure includes a plurality of upright support posts supporting a roof. Each support post includes a lower post section and an upper post section detachably coupled together in an end-to-end arrangement.

Abstract: A pattern selector valve (32) is lodged in a seat supporting stool (22) which supports an operator's seat (23) thereon, with a switch lever (32B) at a front side of the seat supporting stool. An operator can easily check out the position of the switch lever (32B) of the pattern selector valve (32) at the time of getting onto the operator's seat (23). Besides, the switch lever (32B) of the pattern selector valve (32) can be easily changed over to a different pattern position in the vicinity of the operator's seat (23). Check-out and change-over of the switch lever (32B) are facilitated and can be carried out in a secure manner under guidance of a pattern indicator (39) which is provided on a front cover (34).

Abstract: The present application relates to a mobile conveying vehicle comprising axles rigidly arranged on a support frame, an operator's cabin and a series of units and additional unit parts such as an engine, pumps, a radiator, hydraulic tank and/or fuel tank. In accordance with the application, the operator's cabin and the units with additional unit parts are mounted on a common frame construction. The frame construction is uncoupled from the support frame.

Abstract: A cab mounting and suspension system for an agricultural windrower that uses pivoting elastomeric mounts on the front corners of the cab and coil-over shock absorbers on the rear corners. A stabilizing bar is mounted on elastomeric isolators and located between the cab and the windrower frame across the back of the cab. The bar extends the full width of the cab to reduce the amount of movement of the cab from side to side as the rear pivots up and down through the range of the coil-over shocks.

Abstract: A side screen for the cab of a work vehicle, such as a skid steer loader, comprises a panel having strips defining openings therebetween. A high percentage of the area of the screen is open for visibility. At least one reinforcing member, such as a rib, is formed in the screen, such as on a strip or on a panel section. An intermediate panel may also provide a section of relatively heightened rigidity. Such reinforcing members reduce sheet bowing, or “oil can” effect, and maintain flatness of the screen, thereby optimizing the screen for a combination of both protection and visibility.

Abstract: A cab capable of easily securing rollover protection strength at low manufacturing cost is offered. Four pillars are mounted in the front and rear, and left and right of the cab. Two of them are mounted respectively in a first position at the outer side portion where it bulges outward and in a second position on the inner side portion and opposite the first position in the left-and-right direction. At least one of the pillars is formed with a pipe. A U-shaped frame is firmly mounted between the upper ends of the left and right rear pillars among the four pillars, and directed rearward to form a U-shaped rear roof frame.

Abstract: A suspension system having a frame, a cab having a front portion pivotally mounted to the frame and at least one actuator mounted between a rear portion of the cab and the frame. A position sensor is mounted adjacent the rear portion of the cab for generating a first signal indicating a position of the cab relative to the frame, an accelerometer is mounted to the frame for generating a second signal indicating an acceleration of the frame relative to gravity and an electronic control receives the first and second signals from the position sensor and the accelerometer and generates a control signal for controlling the actuator in response to the first and second signals.

Abstract: A truck cab is supported from the vehicle chassis at six points, two points being at the front corners of the cab, two points (mid-mount) being midway between the front and the back of the cab along the exterior sides and two points being along the rear sill of the cab. The front support points are fitted with conventional rubber mounts supported from chassis frame rails. Left side and right side single leaf springs are attached between one each of the mid-mount support points and the rear sill support points. A single shock absorber may be fitted centered along the longitudinal center line of the vehicle under the rear sill, bracketed by the rear support points.

Abstract: An apparatus for monitoring an operator vibration for an earth moving machinery with an operation cab is disclosed.

Abstract: A configuration of a three-wheeled agricultural applicator is provided that enhances visibility or the field of view of an operator. The three-wheeled agricultural applicator includes a frame assembly having a fork assembly and a kingpin extending generally upward therefrom. The three-wheeled agricultural applicator further includes a steering assembly that includes a steering wheel interlinked by a left steering actuator and a right steering actuator with a steering plate attached at the top of the kingpin. This configuration allows a hood associated with a drive unit of the three-wheeled agricultural applicator to be angled in a downward direction towards the forward direction of travel, thus enhancing the operator's field of view.

Abstract: A suspension system, typically for use between a cab and an associated truck frame, including a s strut module having a strut, an air spring and a control module. The control module is connected to a source of pressurized air, is integral with the strut and includes a height sensor for sensing a distance between the cab and truck frame. The integral control module selectively pressurizes the air spring in response to changes in that distance. Preferably, the strut is a magnetorheological, McPherson-type strut and the air spring encloses at least a portion of the strut to provide a compact assembly. The strut damping characteristics are varied by the control module to provide optimal ride characteristics. The strut module includes a three-point connection to the cab and frame to resist relative lateral movement between the cab and frame.

Abstract: The invention is a suspension system, typically for use between a cab and a truck frame, includes a strut module having a strut and an air spring, and a control module, connected to a source of pressurized air, for sensing a distance between the cab and truck frame and selectively pressurizing the air spring in response to changes in that distance. Preferably, the strut is a McPherson-type strut and the air spring encloses at least a portion of the strut to provide a compact assembly and includes a three point connection to the cab and frame to resist relative lateral movement between the cab and frame. The strut also preferably is a magnetorheological-type damper so that the control module can adjust the damping characteristics of the strut to optimize rider comfort.

Abstract: An agricultural vehicle includes a cab for an operator of the agricultural vehicle, the cab including a floor, and a utility box mounted beneath the floor for displacement between a storage and an extended position, the utility box including a latch for retaining the utility box in the storage position, the latch being releasable from within the cab.

Abstract: The invention provides a driver's cab for a work vehicle which is provided with a function of effectively transferring an external force applied to a ceiling portion to a pillar without making a structure complex, and can achieve a reinforced structure. In a driver's cab (1) in a working vehicle, the driver's cab being structured by a pipe-like member, a connection member (30 (31)) for dispersing a stress is arranged in a support pillar (11 (12)) in an opposite side particularly in the case that an external force is applied to a transverse outer side of a ceiling portion.

Abstract: In order to enhance an operator's ability to control a work machine, an operator control station includes a seat assembly that is moveably mounted to a body of the work machine. The operator can control, at least in part, primary operator controllable aspects of the work machine by manipulating work machine operating controls attached to move with the seat assembly. The operator can monitor a work machine operating condition, at least in part, via a work machine operating condition display panel also attached to move with the seat assembly. In addition, the operator control station is interchangeable among a plurality of work machines of different types and sizes.

Abstract: A body structure of a forklift truck is provided, with which no dead space is formed in a cross member while securing the constructional strength of the cross member, an increase in length of the truck body due to the space needed in the prior art to locate the exhaust muffler can be evaded resulting in a compact forklift truck, and winding-up of dust on the ground caused when the radiator cooling air flows to the underside of the truck body is prevented without an increase in manufacturing cost. The structure of the vehicle body having a cross member fixed to the inside faces of a pair of left and right side frames is characterized in that the cross member is composed of a vertical plate and a horizontal plate fixed to the vertical plate at a substantially right angle to form a crooked member having the general shape of an inversed letter “L” with an axle support member fixed the lower end of the vertical plate.

Abstract: 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 disposed sideways of the seat for operating the attachment, the machine is characterized in that a canopy comprises a front support post disposed in front of the seat, a rear support post disposed behind the seat, a side support post disposed sideways of the seat and on the side where an operator gets on and off the machine body, and a roof which connects the support posts with one another, the front support post being disposed close to the devices receptacle portion and the side support post being disposed outside the operating member to form an open portion obliquely in front of the seat where open portion is for ensuring a working vision for the attachment which is swung to the seat side.

Abstract: Method and device for suspending a cab (4) on a vehicle frame (3) using vertical orientation for both a first element (1) that absorbs shocks/vibrations from the vehicle frame (3) to the cab (4) and a second element (2) that acts as a load support between cab (4) and the vehicle frame (3)in the event of, for example, accident situations. The first and second elements (1, 2) are arranged on the device, which connects the cab (4) to the vehicle frame (3) by a firm connection between the first element (1) and the cab (4), or alternatively the vehicle frame (3).

Abstract: A commercial truck has a cab, a flatbed, and provides a space between the cab and flatbed, wherein an auxiliary fuel tank is mounted on a frame of the truck. A sleeper unit is positioned on, and supported by, the auxiliary fuel tank, the sleeper unit adapted for being accessed directly from the cab. A picker crane is mounted on the frame of the truck behind the auxiliary fuel tank and the sleeper unit and within the space between the cab and the flatbed.

Abstract: An industrial truck, in particular a fork lift truck, is provided with a rear weight and an internal combustion engine. The internal combustion engine is fastened to the rear weight. The internal combustion engine is advantageously mounted so that it can oscillate around an axis that extends in the transverse direction of the industrial truck.

Abstract: In the operation of work machines of the type having an extensible arm, the maximum reach of the arm for a given work machine is limited by such factors as the vehicle's weight, body size and engine placement. The present invention provides for a work machine arrangement in which a work machine has an engine cooling apparatus mounted to the work machine body such that the engine cooling apparatus's longitudinal axis is oriented substantially parallel to the arm longitudinal axis.

Abstract: An apparatus and method for determining when a component of a work vehicle experiences vibration above a predetermined threshold, and responding to the vibration so that the vibration is reduced below the predetermined threshold. The apparatus, which is in a work vehicle that includes a chassis, an operator's cab and an active cab suspension system, includes a sensor that is configured to sense a quantity representative of the vibration experienced by the component of the work vehicle and to develop a first signal indicative of that quantity. The apparatus also includes a signal processor that is coupled to the sensor and is configured to develop, in response to the first signal, a second signal indicative of whether the vibration experienced by the component is above the predetermined threshold.

Abstract: An operator station for a lift truck or other vehicle including a scalloped arm rest providing a plurality of arm rest positions for operators of varying sizes. The arm rests are positioned approximate an operator control handle, such that operators can operate vehicle controls while resting their arms in a selected one of the scalloped arm rests.

Abstract: An operator's room (cab) situated in a region above the power train of a work machine which has an opening for maintenance purposes formed passing through a floor frame and a lid member for closing off the opening installed on the floor frame, and which achieves both good quietness characteristics and good workability during servicing. In the operator's cab of the invention, the floor section of the floor frame has a hollow box-type structure, and the lid member has a hollow box-type structure which fits into the opening in the floor section of the floor frame, and furthermore, a sealing member for sealing a gap between the floor section of the floor frame and the lid member is provided.

Abstract: A suspension system isolates the operator cab or seat from vibrations in the chassis of a vehicle. At least one hydraulic actuator is connected between the cab or seat and the vehicle chassis. An accumulator is coupled to the hydraulic actuator and acts as a hydraulic spring to attenuate high frequency vibrations. An electrically operable, three-position, closed-center control valve selectively connects the hydraulic actuator to a source of pressurized hydraulic fluid or a reservoir. Sensors detect acceleration and displacement of the cab or seat to which a controller responds by operating the valve. That control of the valve actively drives the hydraulic actuator to produce motion that counters the relatively low frequency vibrations from the chassis.

Abstract: Cab-over-engine freight vehicle with a driver's cab which is untiltable relative to the chassis and is situated above the vehicle's engine which is supported by the chassis. On each side of the vehicle there is a panel which is provided with steps, delineates the engine compartment laterally and is mounted pivotably on the chassis by means of a panel control arrangement which makes it possible to impart a displacement movement to the panel so that it swings outwards and rearwards in the longitudinal direction of the vehicle to an engine access position. Below the door of the driver's cab there is a cover which is hinged-mounted on the chassis and which in the closed position conceals the step panel situated inside it. The cab door and the cover below the door are detachably coupled with one another by a relative-motion absorbing control arrangement.

Abstract: 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 disposed sideways of the seat for operating the attachment, the machine is characterized in that a canopy comprises a front support post disposed in front of the seat, a rear support post disposed behind the seat, a side support post disposed sideways of the seat and on the side where an operator gets on and off the machine body, and a roof which connects the support posts with one another, the front support post being disposed close to the devices receptacle portion and the side support post being disposed outside the operating member to form an open portion obliquely in front of the seat where open portion is for ensuring a working vision for the attachment which is swung to the seat side.

Abstract: An agricultural vehicle includes a chassis and a cab supported on the chassis by means of a support system which maintains the cab level. The support system comprises two pairs of hydraulic actuators. Each pair of actuators is operative to tilt the cab relative to the chassis about a respective one of two mutually inclined axes. The two actuators of each pair are connected to a common pumping element in such a manner that whenever the volume of hydraulic fluid in one of the actuators in the pair is reduced, the volume of hydraulic fluid in the other actuator of the same pair is correspondingly increased.