摘要:
A work vehicle includes a first section having a first set of ground engaging motive members, a second section having an operator station, and a third section having a second set of ground engaging motive members. The first section is pivotally coupled to the second section about the first pivot axis, while the second section is pivotally coupled to the third section about a second pivot axis. Preferably, the operator station has an arcuate front contour with a radius centered proximate the first pivot axis.
摘要:
A control console for a mobile machine includes a lower support device, a first platform and a pair of links pivotally coupled between the support device and the first platform. A second platform is mounted atop the first platform for sliding movement parallel thereto and a compression mechanism coacts with the platforms and secures them in respective positions. More specifically, each platform includes a horizontal support member and a web extending downwardly from such members. The platform webs are closely proximate one another and when the compression mechanism is tightened, the webs and one of the links are compressed together. Web/link compression prevents up-down movement of the platforms in unison and also prevents movement of the second platform with respect to the first platform. A new method for moving the position of a control lever mounted on the console is also disclosed.
摘要:
A system for moving a step assembly in response to maneuvers of an articulated work vehicle. The step assembly moves to avoid interference with the vehicle's wheels or tracks. A push rod assembly provides actuation to the step assembly in response to the vehicle motions.
摘要:
Referring more particularly to FIG. 4, the present invention red ices such shear loading on the bolts, by utilizing a wedge member or a tapered block 106, inserted and wedged into a space 108 between wedge surfaces 70 and 88, and having oppositely facing outer surfaces 110 and 112 thereby placed into abutment with those surfaces, respectively, so as to exert a fore and aft directed force against those surface, denoted by arrows C, effectively acting to push those surfaces apart and counteracting the shear loads B. Such forces will also act in opposition to and reduce tensile loads acting on bolts 100. Tapered block 106 has at least one passage 114 therethrough (FIG. 3) for the passage of bolts 104 therethrough, to allow insertion of those bolts into threaded holes 98 and tightening those bolts to exert compressive forces against tapered block 106, denoted by arrows D, for holding that block in position. This may also be sufficient to apply a tensile load bolts 100, which are preferably at least generally longitudinally aligned therewith as shown. As a result, a force equilibrium condition can be achieved, which can significantly and predictably reduce and control shear forces acting against the bolts or other connectors for connecting axle housing 74 to the side plates 24 of chassis 22.
摘要:
A resilient suspension element for use in a resilient system for supporting roller wheels from the undercarriage of a tracked vehicle having a rubber track. The resilient suspension element includes a T-shaped and a U-shaped rigid mounting component, with the inside surface of a U-shaped resilient component secured to the leg of the T-shaped component and the outside surface secure to the inside surface of the U-shaped rigid mounting component. A resilient suspension element is secured to each end of a beam, extending transverse to the axles of the roller wheels mounted thereon, to provide resilient support in the vertical direction and limited resilience to "fore" and "aft" and rolling motion of the beam, and the roller wheels mounted thereon, with respect to the undercarriage.
摘要:
An apparatus for controlling the position of an operating handle includes a plate which couples such operating handle to a device such as a hydraulic valve. The plate includes a detent notch, a shoulder and a control surface. An auxiliary lever is mounted for pivoting movement between a first, engaged position and a second, disengaged position and is maintained in either position by a compression spring. Such compression spring exhibits toggling movement as the lever is moved between positions. The lever includes a pin for engaging the detent notch when the lever is in the first position and the handle is thereby retained in a predetermined position. When the pin is in contact with the control surface and with the shoulder, the handle is retained in an operating position. Movement of a stop mechanism to a position which does not obstruct handle movement also permits the operating handle to move to a "float" position.
摘要:
A work vehicle having a front end, a rear end, a longitudinal length and a transverse width which includes a remote fluid power supply system, the remote fluid power supply system includes a fluid pump, a fluid reservoir, a first valve fluidly connected to the pump and the reservoir, and a second valve fluidly connected to the pump and the reservoir. The first valve is located on a first side of a transverse center line of a work vehicle at one of the front and rear ends of the work vehicle. The second valve is located on a second opposite side of the transverse center line at said one of the front and rear ends of the work vehicle. In one embodiment, the work vehicle includes a three-point hitch having a pair of transversely spaced side links and an upper hitch link extending from the transverse center line, wherein the first and second valves are located on first and second opposite sides of the upper hitch link. In another embodiment, the work vehicle includes a power take-off shaft extending from the transverse center line, wherein the first and second valves are located on first and second opposite sides of the power take-off shaft at the end of the work vehicle. In at least one of the embodiments, both the first and second valves are fluidly connected to the pump by a single fluid conduit and are fluidly connected to the fluid reservoir by a single fluid conduit extending across the transverse center line of the work vehicle.
摘要:
Disclosed herein is a work vehicle, such as a tractor, having a frame, a compartment, a hood coupled to the frame and configured to at least partially cover the compartment when disposed in a closed position; and a mechanism coupling the hood to the frame, the mechanism configured to move the hood between the closed position and at least one at least partially opened position, the mechanism including at least one four-bar linkage, a first bar of the linkage including a portion of the frame and a second bar of the linkage including a portion of the hood, the vehicle further having a support member configured to engage the at least one linkage at predetermined positions and thereby immobilize the hood against further changes in position. The support member has a first portion movably secured to the vehicle, a second portion configured as a handle, and an intermediate portion disposed between the first and second portions and including at least one catch member disposed to engage an engaging member of the at least one linkage. The vehicle includes a primary latch for securing the hood to the frame in the closed position, and a secondary latch for backing up the primary latch in the closed position by engaging a support member catch with an engaging member of the at least one linkage. The vehicle further comprises a coupler coupling the support member to the primary latch whereby the support member functions as a single lever actuating device of both the primary and secondary latches. The vehicle further comprises at least one biasing device selectable in spring constant and preload and configurable in locating of mounting whereby a particular biasing device may be used to balance a hood of particular weight and weight distribution in the open, closed, and intermediate positions.
摘要:
A tiltable steering system for an off-highway implement including a steering column having a steering wheel connected toward an upper end thereof. A tilting mechanism for the steering column defines a generally horizontal pivot about which the steering column moves. The tilting mechanism further includes a gas spring mechanism connected to the steering column for allowing the steering column to pivotally move through a relatively wide range of positions and thereafter be locked in a selected tilted position. A second tilting mechanism is provided between the steering column and the steering wheel for allowing the steering wheel to be adjusted and secured in a tilted position independently of the selected tilted position of the steering column. To further promote ergonomic positioning of the steering wheel, the steering column of the present invention is elevationally adjustable as through telescoping casings which define the steering column. A locking mechanism secures the casings in adjusted relation to each other thereby allowing the elevational position of the steering wheel to be adjusted as desired by the operator.
摘要:
A shift mechanism for a multi-speed transmission of an off-highway implement. The shift mechanism includes an in-line shifter assembly that connects to first and second actuators on the transmission. The shifter assembly is configured to shift the transmission between speed ratios under one-handed control and comprises a first controller that is movable along a monoplanar path of travel and a second controller that is carried by the first controller and is movable between two vertical positions. The shifter assembly is connected to a selected one of the transmission actuators as a function of the vertical position of the vertically movable controller. Back and forth movements of the other controller moves the selected one of the transmission actuators into a position which conditions the transmission for operation in a selected speed ratio. The shifter assembly is pivotally mounted on a housing to form a modular unit that can be mounted at the work station of the implement and thereafter is connectable to the transmission actuators through suitable force transfer mechanisms.