AUTO-UP SWITCH FOR SIMULANEOUSLY RETRACTING A PAIR OF STABILZER LEGS ON A BACKHOE LOADER MACHINE
First Claim
1. A method of individually extending and simultaneously retracting a pair of stabilizer legs for a work machine, the work machine having a control device for selecting forward or reverse directions of movement for the work machine and being operatively associated with a power source, comprising the steps of:
- activating a pair of control switches in communication with the power source, one of the pair of control switches being operatively associated with a respective one of a pair of stabilizer legs for individually moving the stabilizer legs from a retracted position to an extended position; and
activating a singular auto-up switch in communication with the power source, the auto-up switch being operatively associated with the pair of stabilizer legs for moving both of the pair of stabilizer legs simultaneously from the extended position to the retracted position.
1 Assignment
0 Petitions
Accused Products
Abstract
Automatic and simultaneous retraction of a pair of stabilizer legs for a backhoe loader machine 10 is beneficial for the operator (not shown) when operation of the backhoe loader is complete. Instead of retracting the stabilizer legs by manually holding a pair of control switches continuously in a control position, the operator (not shown) may simply push an auto-up switch with a single, “one-touch” contact. Once the auto-up switch has been activated by the “one-touch” contact, a timer relay is enabled. The timer relay acts independently of the auto-up switch to control the simultaneously retraction of the stabilizer legs without any further contact to the auto-up switch. When the timer relay is enabled, it sends a signal to activate the control switches for a preselected time. The activation of the control switches actuates a pair of solenoid valves which control the movement of the stabilizer legs from any one of a plurality of extended positions to a fully retracted position within the preselected time.
14 Citations
15 Claims
-
1. A method of individually extending and simultaneously retracting a pair of stabilizer legs for a work machine, the work machine having a control device for selecting forward or reverse directions of movement for the work machine and being operatively associated with a power source, comprising the steps of:
-
activating a pair of control switches in communication with the power source, one of the pair of control switches being operatively associated with a respective one of a pair of stabilizer legs for individually moving the stabilizer legs from a retracted position to an extended position; and
activating a singular auto-up switch in communication with the power source, the auto-up switch being operatively associated with the pair of stabilizer legs for moving both of the pair of stabilizer legs simultaneously from the extended position to the retracted position. - View Dependent Claims (2, 3, 4, 5, 6)
-
-
7. A work machine having front and rear end portions a control panel disposed within an interior of the work machine, a pair of stabilizer legs connected to the rear end portion, a hydraulic cylinder operatively associated with each of the pair of stabilizer legs for moving the stabilizer legs in a plurality of positions between fully extended and fully retracted, the work machine capable of movement in forward or reverse directions and having a control device for selecting the forward or reverse direction thereof, comprising:
-
a pair of control switches located on the control panel and being operatively associated with a respective one of the pair of stabilizer legs and adapted through activation for actuating the hydraulic cylinders individually to move the stabilizer legs from any one of the plurality of retracted positions to any one of the plurality of extended positions; and
a singular auto-up switch located on the control panel and being operatively associated with the pair of stabilizer legs and adapted through activation for actuating the pair of hydraulic cylinders simultaneously to move both of the pair of stabilizer legs from the any one of the plurality of extended positions to the fully retracted position. - View Dependent Claims (8, 9, 10, 11, 12, 13, 14, 15)
-
Specification