Fifth wheel hitch

• US 4,669,748 A
• Filed: 05/19/1986
• Issued: 06/02/1987
• Est. Priority Date: 12/16/1985
• Status: Expired due to Fees

• Current Assignee: Robert C. Levee
• Original Assignee: Robert C. Levee
• Inventors: LeVee, Robert C.
• Primary Examiner(s): Pekar, John A.
• Application Number:
  US06/864,473
• Time in Patent Office: 379 Days
• Field of Search: 280/423 R, 280/479 R, 280/479 A, 280/477, 280/490 R, 280/490 A
• US Class Current: 280/423.1
• CPC Class Codes: B62D 53/0828 Removable or fold-away traction couplings for non-specialised tractor vehicles

Abstract

The secured enclosure of the instant invention includes a multi-compartmental enclosure, each compartment having a watertight door. The enclosure includes a powered vent system to provide circulation of air through the enclosure and a hitch receiving well formed in the enclosure for receiving a hitch for attaching a pulled vehicle to the pickup truck frame. The fifth wheel hitch of the invention includes engagement means for engaging a pulling vehicle, a mount for the engagement means, which is shiftable between an extended and retracted position, and an obstruction sensor which is operable to detect an impending impact between the pulling vehicle and the towed vehicle during the hitching process. Warning means are operable with the sensor to alert the operator of the impending impact.

Claims

1. A fifth wheel hitch for attaching a towed vehicle to a pulling vehicle comprising:

pulling vehicle engagement means carried on the towed vehicle for engaging a fifth wheel hitch means mounted on the pulling vehicle;

an engagement means mount, shiftable between an extended position and a retracted position;

powered adjustable jack means operably mounted on the towed vehicle for adjusting, relative to the pulling vehicle, the height of said engagement means mount;

an obstruction sensor operable to detect, as the pulling vehicle and the towed vehicle are closingly moved relative one another, the presence of an obstruction on the pulling vehicle which, with further closing, would impact said engagement means;

warning means operable with said sensor to alert the operator of the presence of the obstacle; and

towed vehicle level sensing means and leveling circuit means, operable with said powered jack means, to adjust the towed vehicle to a level condition.

2. The hitch of claim 1 which further includes sensor shifting means, operable with said engagement means mount, to shift said sensor between an operating position and a rest position as said engagement means mount shifts from said retracted position to said extended position.

3. The hitch of claim 2 which further includes a hitch mount, said engagement means mount and said sensor being shiftably attached thereto.

4. The hitch of claim 1 wherein said engagement means includes powered activation means therefore;

and which further includes a logic circuit operable with said powered activation means, serially, to raise, relative to the pulling vehicle, said engagement means to a predetermined height, to signal the pulling vehicle operator when said engagement means is vertically aligned with the pulling vehicle hitch means, to extend said engagement means mount, and to lock said engagement means to said hitch means.

5. The hitch of claim 1 wherein said engagement means includes a hitch means receiving socket, an engagement sensor to detect the full engagement of said socket and said hitch means, and powered locking means for securing, upon said full engagement, said socket to said hitch means.

11. The hitch of claim 1 wherein said engagement means includes powered activation means therefore;

and which further includes a logic circuit operable with said powered activation means, serially, to raise, relative to the pulling vehicle, said engagement means to a predetermined height, to signal the pulling vehicle operator when said engagement means is vertically aligned with the pulling vehicle hitch means, to extend said engagement means mount, and to lock said engagement means to said hitch means.

12. The hitch of claim 1 wherein said engagement means includes a hitch means receiving socket, an engagement sensor to detect the full engagement of said socket and said hitch means, and powered locking means for securing, upon said full engagement, said socket to said hitch means.

13. The hitch of claim 1 wherein said sensor includes a deflectable portion operable to deflect upon impact with an obstruction, said deflectable portion producing a warning signal upon such impact, said warning signal being operable to activate said warning means.

6. The hitch of claim said sensor includes a deflectable portion operable to deflect upon impact with an obstruction, said deflectable portion producing a warning signal upon such impact, said warning signal being operable to activate said warning means.

7. A fifth wheel hitch for attaching a towed vehicle to a pulling vehicle comprising:

pulling vehicle engagement means for engaging a fifth wheel hitch means mounted on the pulling vehicle;

an engagement means mount, shiftable between an extended position and a retracted position;

an obstruction sensor operable to detect, as the pulling vehicle and the towed vehicle are closingly moved relative one another, the presence of an obstruction on the pulling vehicle which, with further closing, would impact said engagement means;

said obstruction sensor including sensor shifting means, operable with said engagement means mount, to shift said sensor between an operating position and a rest position as said engagement means mount shifts from said retracted position to said extended position; and

warning means operable with said sensor to alert the operator of the presence of the obstacle.

8. The hitch of claim 7 which further includes a hitch mount, said engagement means mount and said sensor being shiftably attached thereto.

9. The hitch of claim 7 which further includes adjustable jack means operably mounted on the towed vehicle for adjusting, relative to the pulling vehicle, the height of said engagement means mount.

10. The hitch of claim 9 which further includes towed vehicle level sensing means and leveling circuit means, operable with said jack means, to adjust the towed vehicle to a level condition.