Automatic step for recreational vehicles
AssigneeHWH Corporation
InventorsPaul E. Hanser, Daniel J. Boddicker, John F. Blake
Life of this patent
Estimating the term…
Abstract
An automatic entryway step system for recreational vehicles and motor homes which extends and retracts a step in response to a momentary push button switch located inside the vehicle near the door. A safety retraction system automatically retracts the step when the vehicle ignition is turned on, but only if the vehicle parking brake is not engaged. If the vehicle ignition system is turned on while the parking brake is engaged, a step warning indicator will be activated to alert the driver that the step is extended. If the parking brake is released, the step will retract and the warning indicator will be turned off.
Claims3
An automatic step extension and retraction system for recreational vehicles, comprising:
- (a) an extendable and retractable entryway step;
- (b) an extension system comprising a control switch operably connected to and activating an extend relay, said extend relay operably connected to a hydraulic pump and a pump solenoid which provide hydraulic fluid to a hydraulic extension cylinder affixed between said vehicle and said step, and further including a pressure switch engaged and actuated by the full extension of said step and operably connected to said extend relay whereby said extend relay is deactivated when said step is extended;
- and
- (c) a retraction system comprising said control switch operably connected to and activating a retract relay, said retract relay operably connected to said pump solenoid, and a retraction spring affixed between said vehicle and said step.
Dependencies are inferred from the claim text.