# US 2014/0190046 A1 · Work vehicle, work vehicle display device, method of controlling work vehicle display device, backhoe loader, backhoe loader display device, and method of controlling backhoe loader display device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2014/0190046 A1 - Document ID: US20140190046A1 - Status: Published application - Kind: A1 - Application number: 14/112,121 - Filed: 2012-02-27 - Published: 2014-07-10 - Earliest claimed: 2011-06-24 - Assignees: Komatsu Ltd. - Inventors: Takehiro Shibata - Web page: https://patentgrep.com/patent/US20140190046A1 ## CPC - E02F 9/26: Indicating devices {(E02F5/145 takes precedence)} - E02F 3/964: {of several tools mounted on one machine (E02F3/962 takes precedence)} - E02F 9/166: {movable, tiltable or pivoting, e.g. movable seats, dampening arrangements of cabins (seats for vehicles in general B60N2/00)} - E02F 9/2012: {Setting the functions of the control levers, e.g. changing assigned functions among operations levers, setting functions dependent on the operator or seat orientation} - E02F 9/264: {Sensors and their calibration for indicating the position of the work tool} - E02F: DREDGING; SOIL-SHIFTING (winning peat E21C49/00) ## Abstract A work vehicle including a first work machine and a second work machine, includes: a seat for which an orientation position toward the first work machine and an orientation position toward the second work machine can be switched; a seat position detection unit configured to detect the orientation position of the seat; a display unit configured to display information related to an operation state of the work vehicle; and a control unit configured to change information displayed by the display unit according to the orientation position of the seat detected by the seat position detection unit. ## Claims ### Claim 1 A work vehicle including a first work machine and a second work machine, comprising: a seat for which an orientation position toward the first work machine and an orientation position toward the second work machine can be switched; a seat position detection unit configured to detect the orientation position of the seat; a display unit configured to display information related to an operation state of the work vehicle; and a control unit configured to change information displayed by the display unit according to the orientation position of the seat detected by the seat position detection unit. ### Claim 2 (depends on 1) The work vehicle according to claim 1, wherein the information displayed by the display unit is individual information that is different between when a work is performed with the first work machine and when a work is performed with the second work machine, and the control unit is configured to switch the individual information according to the orientation position of the seat detected by the seat position detection unit. ### Claim 3 (depends on 2) The work vehicle according to claim 2, wherein the individual information is first individual information related to a work by the first work machine displayed in the display unit when the seat position detection unit detects that the seat is in the orientation position toward the first work machine, or second individual information related to a work by the second work machine displayed in the display unit when the seat position detection unit detects that the seat is in the orientation position toward the second work machine. ### Claim 4 (depends on 3) The work vehicle according to claim 3, wherein, when the orientation position detected by the seat position detection unit is not the orientation position toward the first work machine and is not the orientation position toward the second work machine, the control unit displays, in the display unit, any of the first individual information, the second individual information, and other information different from the first individual information and the second individual information. ### Claim 5 (depends on 3) The work vehicle according to claim 3, wherein at least one of the first individual information and the second individual information is information indicating a physical amount that is changed according to an operation of a power transmission mechanism of the work vehicle, or information indicating a setting state of a steering system of a traveling body included in the work vehicle. ### Claim 6 (depends on 2) The work vehicle according to claim 2, wherein the individual information is displayed in a central part of a display screen that is included in the display unit. ### Claim 7 (depends on 1) The work vehicle according to claim 1, wherein the information displayed by the display unit includes common information displayed in the display unit commonly when a work is performed with the first work machine and when a work is performed with the second work machine. ### Claim 8 (depends on 1) The work vehicle according to claim 1, wherein the seat position detection unit is configured to detect the orientation position of the seat by detecting a revolving position of the seat or a backrest position of the seat. ### Claim 9 A work vehicle display device comprising: a display unit configured to display information related to an operation state of a work vehicle in which a first work machine and a second work machine are arranged, the work vehicle including a seat for which an orientation position toward the first work machine and an orientation position toward the second work machine can be switched; and a control unit configured to change information displayed by the display unit according to a seat position detected by a seat position detection unit configured to detect the orientation position of the seat. ### Claim 10 A method of controlling a work vehicle display device including a display unit configured to display information related to an operation state of a work vehicle in which a first work machine and a second work machine are arranged, the work vehicle including a seat for which an orientation position toward the first work machine and an orientation position toward the second work machine can be switched, the method comprising: a seat position detection step of detecting the orientation position of the seat; and a control step of changing information displayed by the display unit according to the orientation position detected by the seat position detection step. ### Claim 11 A backhoe loader provided with a loader and a backhoe, comprising: a seat for which an orientation position toward the loader and an orientation position toward the backhoe can be switched; a seat position detection unit configured to detect the orientation position of the seat; a display unit configured to display information related to an operation state of the backhoe loader; and a control unit configured to change information displayed by the display unit according to the orientation position of the seat detected by the seat position detection unit. ### Claim 12 A backhoe loader display device comprising: a display unit configured to display information related to an operation state of a backhoe loader in which a loader and a backhoe are arranged, the backhoe loader including a seat for which an orientation position toward the loader and an orientation position toward the backhoe can be switched, and a control unit configured to change information displayed by the display unit according to a seat position detected by a seat position detection unit configured to detect the orientation position of the seat. ### Claim 13 A method of controlling a backhoe loader display device including a display unit configured to display information related to an operation state of a backhoe loader in which a loader and a backhoe are arranged, the backhoe loader including a seat for which an orientation position toward the loader and an orientation position toward the backhoe can be switched, the method comprising: a seat position detection step of detecting the orientation position of the seat; and a control step of changing information displayed by the display unit according to the orientation position detected by the seat position detection step.