Front attachment control system

Patent metadata

Field	Value
Publication number	US-9629299-B2
Application number	US-201414451832-A
Country	US
Kind code	B2
Filing date	Aug 5, 2014
Priority date	Aug 5, 2014
Publication date	Apr 25, 2017
Grant date	Apr 25, 2017

Abstract

A front attachment control system includes a selective control valve controlled by a joystick in a utility vehicle operator station, a diverter valve connected to the selective control valve and having a diverter switch that switches the diverter valve between a first position for an attachment tilt function and a second position for an attachment angling function controlled by the joystick. A front attachment with an angling cylinder includes a pair of hydraulic lines connectable to the diverter valve, and an actuator that engages the diverter switch as the hydraulic lines are connected to the diverter valve to switch the diverter valve to the second position.

First claim

The invention claimed is:

1. A front attachment control system, comprising:
a diverter valve and a diverter switch on a front of a utility vehicle; the diverter valve actuated by the diverter switch to move between a first position opening a pair of hydraulic lines connected to a tilt cylinder and a second position opening a pair of hydraulic lines connected to an angling cylinder; and
an actuator on a hydraulic line of a front attachment and having an actuator pin that is positioned to engage the diverter switch when the hydraulic line on the front attachment is connected to the diverter valve.

2. The front attachment control system of claim 1 further comprising a selective control valve connected to the diverter valve that directs hydraulic flow to a lift cylinder and the tilt cylinder or the angling cylinder based on the position of an operator controlled joystick.

3. The front attachment control system of claim 1 further comprising a power take off connected to the front attachment.

4. A front attachment control system on a utility vehicle, comprising:
a front attachment having hydraulic lines connected to an angling cylinder; and
a hydraulic circuit on the utility vehicle having hydraulic lines connected to a lift cylinder, hydraulic lines connected to a tilt cylinder, and a diverter switch that actuates a valve closing the hydraulic lines connected to the tilt cylinder and opening the hydraulic lines connected to the angling cylinder when an actuator on the hydraulic lines of the front attachment engages the diverter switch.

5. The front attachment control system of claim 4 wherein the hydraulic circuit includes a selective control valve operated by a joystick, and a diverter valve actuated by the diverter switch.

6. The front attachment control system of claim 5 wherein the diverter valve is mounted adjacent a front hitch of a utility vehicle.

Assignees

• Deere & Co

Inventors

• Swanson Larry D
• Knight Daniel

Classifications

• E01H5/098

  about horizontal or substantially horizontal axises perpendicular or substantially perpendicular to the direction of clearing · CPC title

• E02F9/2267

  Valves or distributors (position of valves arrangements on upper-structures E02F9/0875) · CPC title

• E02F9/2012

  Setting the functions of the control levers, e.g. changing assigned functions among operations levers, setting functions dependent on the operator or seat orientation · CPC title

• E02F3/7631

  with the scraper blade adjustable relative to the frame about a horizontal axis · CPC title

• A01B63/108 Primary

  on the front part · CPC title