E02F9/2012

Control stand for a crane, excavator, and the like

A control stand is disclosed for controlling a crane, an excavator, a crawler, or a similar construction machine having a seat, control elements actuable from the seat for inputting control commands, a display apparatus for displaying information, and a control unit for generating adjustment signals in dependence on input control commands and/or for providing information to the display apparatus. A crane is disclosed having such a control stand that can be configured in the form of a crane operator's cabin. The control elements and/or the display apparatus of the control stand and various further auxiliary units can be individually configurable. Personal pre-settings can be saved and can be reinvoked when the control stand or the crane is to be controlled by a certain machine operator.

WORK VEHICLE MAGNETORHEOLOGICAL FLUID JOYSTICK SYSTEMS REDUCING UNINTENDED JOYSTICK MOTIONS

In embodiments, a work vehicle magnetorheological fluid (MRF) joystick system includes a joystick device, an MRF joystick resistance mechanism, and a controller architecture. The joystick device includes, in turn, a base housing, a joystick movably mounted to the base housing, and a joystick position sensor configured to monitor movement of the joystick relative to the base housing. The MRF joystick resistance mechanism is controllable to vary a first joystick stiffness resisting movement of the joystick relative to the base housing in at least one degree of freedom. The controller architecture is configured to: (i) detect when unintended joystick motion conditions occur during operation of the work vehicle; and (ii) when detecting unintended joystick motion conditions, command the MRF joystick resistance mechanism to increase the first joystick stiffness in a manner reducing susceptibility of the joystick device to unintended joystick motions.

MAGNETORHEOLOGICAL FLUID JOYSTICK SYSTEMS PROVIDING DETENT-TRIGGERED WORK VEHICLE FUNCTIONS

Embodiments of a work vehicle magnetorheological fluid (MRF) joystick system includes a joystick device having a base housing, a joystick movably mounted to the base housing, and a joystick position sensor monitoring movement of the joystick relative to the base housing. An MRF joystick resistance mechanism is controllable to vary a joystick stiffness resisting movement of the joystick relative to the base housing in at least one degree of freedom. A controller architecture is coupled to the joystick position sensor and to the MRF joystick resistance mechanism. The controller architecture is configured to: (i) command the MRF joystick resistance mechanism to increase the joystick stiffness when the joystick is moved into a first predetermined detent position to generate a first MRF detent; and (ii) selectively activate a first detent-triggered function of the work vehicle based, at least in part, on joystick movement relative to the first MRF detent.

Apparatus for facilitating bucket movement

An apparatus for facilitating bucket movement of a material handling machine includes a joystick biased to a neutral position, movable away from the neutral position in a first direction along an axis to a first position, and movable away from the neutral position in a second direction along the axis, opposite the first direction, to a second position. The apparatus further includes an operator input movable from a disengaged position to an engaged position in which a bucket of the material handling machine is configured to automatically move in an oscillatory motion. When the operator input is in the engaged position, an intensity of the oscillation is dependent upon a position of the joystick along the axis, decreasing along the axis from the first position to the second position.

WORKING MACHINE

A lock mechanism that is switchable between a locking state in which a movement of an operation member of a working machine is restricted and an unlocking state includes an engagement portion to rotate together with the operation member, a lock body including an engaged portion at its intermediate portion, a lock support shaft that supports the lock body rotatably, and a driving portion that applies a driving force to the lock body. The lock body is moved by the applied driving force to a position in which the engaged portion is in engagement with the engagement portion and a position in which the engaged portion is not in engagement with the engagement portion.

Work vehicle

Provided is a work vehicle which can prevent an engine from stalling regardless of type of a system mounted on a vehicle body. In a wheel loader 1 equipped with a loading work device 11 operated by an electric operation lever 19, first and second directional control valves 5, 6 include neutral positions 5N, 6N for causing hydraulic oil discharged from a hydraulic pump 12 to return to a hydraulic oil tank 10, respectively, and in the case where a discharge pressure P of the hydraulic pump 12 is a main relief pressure Pr or more and an engine rotational speed N is less than a low idle rotational speed NL, a controller 2, 2A restricts the output of control signals to first and second solenoid control valves 3, 4 so as to cause the first and second directional control valves 5, 6 to be switched to the neutral positions 5N, 6N, respectively.

CONTROL STAND FOR A CRANE, EXCAVATOR, AND THE LIKE

A control stand is disclosed for controlling a crane, an excavator, a crawler, or a similar construction machine having a seat, control elements actuable from the seat for inputting control commands, a display apparatus for displaying information, and a control unit for generating adjustment signals in dependence on input control commands and/or for providing information to the display apparatus. A crane is disclosed having such a control stand that can be configured in the form of a crane operator's cabin. The control elements and/or the display apparatus of the control stand and various further auxiliary units can be individually configurable. Personal pre-settings can be saved and can be reinvoked when the control stand or the crane is to be controlled by a certain machine operator.

MANOEUVRING ARRANGEMENT, AND A METHOD FOR THE MANOEUVRING ARRANGEMENT
20230366173 · 2023-11-16 · ·

A manoeuvring arrangement for a working equipment, includes a manoeuvring unit and control unit. The manoeuvring arrangement is configured to initiate a selection state in response of a first interaction by an operator with a first selection member. A control unit, when in a selection state, controls a second display section to display a navigation view including a list of a group of a plurality of predefined operation modes. A timer module monitors the time period since the last interaction by the operator with the first selection member and generates an exit selection state signal in response of the monitored time period being larger than a predefined selection time period. The manoeuvring arrangement leaves the operation mode selection state if an exit selection state signal has been generated and initiates the operation mode by applying the operation mode with a marking in the displayed list on the second display section.

OPERATING DEVICE, WORK VEHICLE, AND OPERATION CONTROL METHOD

This operating device includes a dial, a display unit, and an allocation unit. The dial receives a rotational operation. The allocation unit selectively allocates to the dial either an engine operational function to adjust the rotation speed of an engine or a screen operational function to perform an operation according to a screen shown on the display unit. It is preferable that the allocation unit allocates the engine operational function to the dial in response to turning on of a key switch for starting up the engine.

CRUISE CONTROL ON A WORK MACHINE
20220333343 · 2022-10-20 ·

A cruise control system for work machines. The system comprises one or more levers for controlling the velocity of the work machine and one or more magnet assemblies. The magnet assemblies comprise means of overcoming the neutral bias of a control lever so that the velocity of the work machine may be maintained without manual input from the operator. The magnets may act directly upon a control lever or a surface adjacent a control lever. Additional controls may be employed to set a maximum cruising speed for the work machine when cruise control is engaged.