Apparatus for controlling an implement of a work machine
US5727387A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 10, 1997 |
| Grant date | Mar 17, 1998 |
| Priority date | — |
| Expiry date | Jan 10, 2017 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/2214
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
An apparatus for controllably moving an implement is provided. The implement is connected to a work machine and is movable between first and second implement positions in response to operation of a hydraulic actuator. The apparatus includes a joystick with first and second positions and a neutral position. The joystick is normally biased in a neutral position and is movable between the first and second positions. The apparatus senses the position of the joystick and responsively generates a joystick position signal. The joystick maintained at the first and second detent positions in response to manual movement of the joystick to the respective first and second detent positions. The joystick is released from the detent position in response to receiving a release detent signal. The apparatus senses the position of the work implement with respect to the work machine. The apparatus provides hydraulic fluid flow to the hydraulic actuator in response to a magnitude of an electrical valve signal. The apparatus receives the joystick position signal, responsively delivers the electrical valve signal. The magnitude of the electrical valve signal is proportional to the joystick position signa…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.