System for preventing damage to recreational vehicle slide-outs

• US 6,505,873 B1
• Filed: 12/06/2000
• Issued: 01/14/2003
• Est. Priority Date: 12/06/2000
• Status: Expired due to Fees

• Current Assignee: Alfa Leisure Inc
• Original Assignee: Alfa Leisure Inc
• Inventors: Crean, Johnnie Robert
• Primary Examiner(s): PAPE, JOSEPH
• Application Number:
  US09/730,901
• Time in Patent Office: 769 Days
• Field of Search: 296/26.09, 296/26.01, 296/26.1, 296/26.12, 296/26.13, 296/26.14, 296/26.15, 296/165, 296/171, 296/172, 296/176, 52/67, 340/425.5, 340/435, 340/436, 340/438, 367/909
• US Class Current: 296/26.13
• CPC Class Codes: B60P 3/34 the living accommodation being expansible, collapsible or capable of rearrangement B60P3/38 takes precedence; tents supported at least partially by vehicles E04H15/06
• CPC Class Codes: Y10S 367/909 Collision avoidance

Abstract

A recreational vehicle having an extendable slide-out controlled by an actuator assembly is provided with a damage avoidance system. The damage avoidance system determines if the slide-out is in an adverse state and, if the adverse state is detected, inhibits the actuator assembly from moving the slide-out. The slide-out is in the adverse state if (a) a collision between the slide-out and a nearby object is imminent, (b) a collision has recently occurred, or (c) a resistive force is acting on the slide-out which substantially inhibits the actuator assembly from moving the slide-out. The damage avoidance system comprises a sensor module for monitoring the state of the slide-out and for providing an override signal to the actuator assembly, wherein the override signal is indicative of the slide-out being in the adverse state. In one embodiment, the sensor module comprises a position sensor disposed adjacent an interior swivel chair of the recreational vehicle, wherein the sensor module generates the override signal if the position sensor detects that the chair is not facing forward. In another embodiment, the sensor module comprises a shock sensor coupled to the slide-out. In yet another embodiment, the sensor module comprises a load sensor that monitors the mechanical load imposed on the actuator assembly.

Claims

1. A recreational vehicle comprising:

a chassis having a plurality of rotatable wheels extending therefrom;

a main housing member disposed above the chassis, said main housing member comprising a plurality of walls that define a main interior living space therebetween and an opening that extends from the main interior living space;

a slide-out member disposed within the opening of the main housing member, said slide-out member comprising a plurality of walls that define a supplemental living space therebetween, wherein the slide-out member is movable between (a) a retracted position such that a substantial portion of the slide-out is disposed within the main interior living space and (b) a deployed position such that a substantial portion of the slide-out is disposed outside of the main interior living space so as to provide the vehicle with an increased overall living space that includes the main interior living space of the main housing member and the supplemental living space of the slide-out member.

an actuator assembly that, when activated, urges the slide-out member to move between the retracted position and the deployed position; and

a damage avoidance system that reduces the likelihood that the slide-out member will be damaged as a result of the slide-out member colliding with an object disposed in the path of the slide-out member.

2. The vehicle of claim 1, wherein the damage avoidance system comprises a sensor module for determining if the slide-out member is in an adverse state.

3. The vehicle of claim 2, wherein the damage avoidance system inhibits the actuator assembly from applying a force onto the slide-out member while the slide-out member is in the adverse state.

4. The vehicle of claim 3, wherein the slide-out member is in the adverse state if the nearby object is disposed in the path of the slide-out member.

5. The vehicle of claim 3, wherein the slide-out member is in the adverse state if the slide-out member has collided with the nearby object.

6. The vehicle of claim 3, wherein the slide-out member is in the adverse state if abnormally large resistive forces are acting on the slide-out member.

7. The vehicle of claim 3, wherein the sensor module comprises a first sensor which is coupled to a movable object disposed within the main interior living space.

8. The vehicle of claim 7, wherein the first sensor detects whether an impulse has been imparted onto the moveable object.

9. The vehicle of claim 7, wherein the first sensor estimates the closest distance between the moveable object and the slide-out member.

10. The vehicle of claim 7, wherein the moveable object is a chair disposed adjacent a front end of the recreational vehicle.

11. The vehicle of claim 10, wherein the chair is not in the path of the slide-out member when the chair is in a first orientation, and wherein a first portion of the chair is in the path of the slide-out member when the chair is in a second orientation.

12. The vehicle of claim 11, wherein the first sensor determines whether the chair is in the first orientation.

13. The vehicle of claim 3, wherein the sensor module comprises a first sensor which is coupled to the slide-out member.

14. The vehicle of claim 13, wherein the first sensor determines if an impulse has been imparted onto the slide-out member.

15. The vehicle of claim 13, wherein the sensor module determines if the nearby object is in the path of the slide-out member.

16. The vehicle of claim 3, wherein the actuator assembly comprises a movement mechanism and a movement arm extending from the movement mechanism, said movement mechanism directing the movement arm to apply a force onto the slide-out member.

17. The vehicle of claim 16, wherein the sensor module comprises a load sensor for measuring the load exerted onto the movement mechanism.

18. The vehicle of claim 17, wherein the movement mechanism is an electric motor for generating a torque and the load sensor monitors the torque exerted by the electric motor.

19. The vehicle of claim 18, wherein the load sensor monitors the current drawn by the electric motor.

20. The vehicle of claim 16, wherein the sensor module generates an override signal upon determining if the slide-out member is in the adverse state.

21. The vehicle of claim 20, wherein the actuator assembly further comprises a switching element and a first communication path extending from the switching element to the movement mechanism, said switching element in a first activated state transmitting an activation signal to the movement mechanism over the first communication path that activates the movement mechanism to move the slide-out member.

22. The vehicle of claim 21, wherein the switching element comprises an override input for receiving an override signal, wherein the switching element is inhibited from transmitting the activation signal while receiving the override signal at the override input.

23. The vehicle of claim 22, wherein the actuator assembly further comprises a second communication path extending from the sensor module to the override input of the switching element, said sensor module transmitting the override signal via the second communication path upon determining that the slide-out member is in the adverse state.

24. A recreational vehicle comprising:

a chassis having a plurality of rotatable wheels extending therefrom;

a main housing member disposed above the chassis, said main housing member comprising a plurality of walls that define a main interior living space therebetween and an opening that extends from the main interior living space;

a slide-out member disposed within the opening of the main housing member, said slide-out member comprising a plurality of walls that define a supplemental living space therebetween, wherein the slide-out member is moveable between (a) a retracted portion such that a substantial portion of the slide-out is disposed within the main interior living space and (b) a deployed position such that a substantial portion of the slide-out is disposed outside of the main interior living space so as to provide the vehicle with an increased overall living space that includes the main interior living space of the main housing member and the supplemental living space of the slide-out member.

an actuator assembly that, when activated, urges the slide-out member to move between the retracted position and the deployed position; and

a damage avoidance system that reduces the likelihood that the slide-out member will be damaged as a result of the slide-out member colliding with an object disposed in the path of the slide-out member, wherein the damage avoidance system comprises a sensor module for determining if the slide-out member is in an adverse state, said sensor module inhibiting the actuator assembly from applying a force onto the slide-out member when the slide-out is in the adverse state.

25. The vehicle of claim 24, wherein the slide-out member is in the adverse state if (a) the mearby object is disposed in the path of the slide-out member, (b) the slide-out member has collided with the nearby object, or (c) abnormally large resistive forces are acting on the slide-out member.

26. The vehicle of claim 24, further comprising a chair that is moveable between a first and a second orientation such that the chair, in the first orientation is in the path of the slide out member when the slide out member is retracting and wherein the sensor module is mounted within the chair such that when the slide out member contacts the chair, the sensor module sends a signal to stop the actuator assembly from moving the sldie out member.

27. The vehicle of claim 26, wherein the sensor module comprises:

a strip of metal mounted on the chair in a location wherein the slide out member will contact the strip of metal when the slide out member is being retracted and the chair is in the first orientation; and

a limit switch positioned within the chair such that when the slide out member contacts the strip of metal, the strip of metal contacts the limit switch and causes the limit switch to send a signal to the actuator assembly to disengage the actuator assembly.