Search

EP-4741581-A2 - DISPLAY INTEGRATED INTO DOOR

EP4741581A2EP 4741581 A2EP4741581 A2EP 4741581A2EP-4741581-A2

Abstract

The present invention discloses a power machine comprising: a cab having a cab frame; a controller; and a transparent, concave surface on a front side of the cab; and a display coupled to the transparent, concave surface, the display having display material configured to allow at least partial visibility through the display material of a work area outside of the cab, the display further configured to display operational information, to an operator of the loader, under control of the controller.

Inventors

  • The designation of the inventor has not yet been filed

Assignees

  • Doosan Bobcat North America, Inc.

Dates

Publication Date
20260513
Application Date
20201112

Claims (7)

  1. A power machine (100; 200; 300; 400; 900; 1000; 1200; 1300; 1400; 1500; 1900) comprising: a cab (250; 1450; 1950) having a cab frame (1414; 1920); a controller (370; 1070; 1270; 1470; 1514; 1516); and a transparent, concave surface (1412; 1502; 1932) on a front side of the cab; and a display (1530; 1730; 1830; 1930) coupled to the transparent, concave surface, the display having display material (1531) configured to allow at least partial visibility through the display material of a work area outside of the cab, the display further configured to display operational information, to an operator of the loader, under control of the controller.
  2. The loader of claim 1, wherein the transparent concave surface includes first and second layers (1504; 1506) of transparent material, and wherein the display (1530) is integrated between the first and second layers of transparent material.
  3. The loader of claim 1, wherein the transparent concave surface includes a layer of transparent material (1504; 1506), and wherein the display is attached to a surface of the layer of transparent material.
  4. The loader of claim 1, wherein the display coupled to the transparent concave surface is configured to display augmented control information.
  5. The loader of claim 4, wherein the display being configured to display augmented control information includes the display being configured to display mapped obstacles or obstructions (1002; 1304; 1306) from a pre-defined position of an operator positioned in an operator seat of the cab.
  6. The loader of claim 1, and further comprising infrared light curtain devices projecting an infrared light curtain proximate the concave surface in alignment with the display and, in response to sensing an object interrupting the infrared light curtain, the infrared light curtain provides coordinates related to the display to the controller where the light curtain is interrupted.
  7. The loader of claim 6, wherein the display and controller are configured to allow the operator, by input through the sensing the object using the infrared light curtain, to select areas on the door assembly where operational information or user inputs are displayed.

Description

BACKGROUND This disclosure is directed toward power machines. More particularly, this disclosure is directed toward power machines including compact loaders with displays integrated into a cab door. Power machines, for the purposes of this disclosure, include any type of machine that generates power for the purpose of accomplishing a particular task or a variety of tasks. One type of power machine is a work vehicle. Work vehicles are generally self-propelled vehicles that have a work device, such as a lift arm (although some work vehicles can have other work devices) that can be manipulated to perform a work function. Work vehicles include loaders, excavators, utility vehicles, tractors, and trenchers, to name a few examples. Loaders, including compact and mini loaders, can be used to perform a variety of tasks using travel, lift, tilt, and auxiliary functions. Commonly, loaders are used to transport material and/or to perform various tasks with attached implements, including digging and other tasks. Often times, the work performed by a loader is repetitive in nature. For example, using a mower implement to mow an area typically requires repetitive control of the loader to control the travel of the machine, raising or lowering of a mower attachment, powering of the mower attachment, etc. Some power machines include enclosed cabs with doors pivotally mounted to a cab frame. The doors can be opened to allow ingress into and egress out of the cab and closed to protect an operator from the environment. In some power machines, the door is positioned in the front of the cab and an operator looks through glass of the door to view the work area during operation. Frequently, display panels mounted in corners of the cab provide operational information to the operator. Maintaining situational awareness of the work area and power machine while also observing displayed information is important. The discussion above is merely provided for general background information and is not intended to be used as an aid in determining the scope of the claimed subject matter. SUMMARY Disclosed embodiments include loaders, and systems used on power machines in the form of compact loaders that are configured to augment power machine control to accomplish repetitive tasks. In providing augmented control, a learning mode is initiated and a home position is set. A series or collection of machine operations required to perform an iteration or cycle of a work task are then learned. Subsequently, the loader can be commanded to automatically perform the series of recorded operations to perform the task as many times as specified to complete a work project. Also disclosed are power machines and loaders having doors with an integrated display that allows the display of information, such as gauges, user inputs, mapped obstacles, boundaries, etc., allowing the operator of the machine to see the displayed information closer to the line of sight with the work area. In accordance with an exemplary embodiment, a power machine (100; 200; 300; 400; 900; 1000; 1200; 1300; 1400; 1500; 1900) is disclosed. The power machine includes a cab (250; 1450; 1950) having a cab frame (1414; 1920) with an aperture (1416; 1904) formed on a front side of the cab to allow ingress into or egress from an operating station (1924) in the cab; a cab door (1410; 1510; 1710; 1810; 1910) coupled to the cab and being positionable between a closed position, in which the cab door covers at least a substantial portion of the aperture to prevent ingress and egress and an open position, in which the cab door is positioned to allow ingress and egress; a controller (370; 1070; 1270; 1470; 1514; 1516); and a display (1530; 1730; 1830; 1930) integrated into the cab door and in electrical digital communication with the controller, the display having display material (1531) configured to allow at least partial visibility through the display material of a work area outside of the cab, the display further configured to display operational information to an operator of the power machine under control of the controller. In some embodiments, the power machine further includes an electrical cable (1512) including a plurality of conductors in communication with the controller and the display integrated into the cab door, wherein the electrical cable is capable of moving to maintain communication between the controller and the display when the cab door moves between the open and closed positions. In some embodiments, the cab door is coupled to the cab by hinges (1522) such that the cab door is pivotable between the closed and open positions, and the electrical cable extends between the cab door and the cab frame proximal to at least one of the hinges. In other embodiments, the cab door is coupled to the cab by rigid linkages (1922) which define a path of the cab door between the closed and open positions, wherein in open position the cab door is located above a seat (1958) of the operator statio