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Bumper integrated school bus safety arm
| Details |
Inventors: Swanger, Eric D.; Hively, Brad A.; Zielinski, Andrew J.; Stanhope, Frank H.;
Assignee: Navistar International Transportation Corp. (Chicago, IL)
Primary Examiner: Pape; Joseph D.
Assistant Examiner: Patel; Kiran B.
Attorney, Agent or Firm: Calfa; Jeffrey P., Sullivan; Dennis Kelly, Hernandez; Gilberto
A school bus crossing or a mounting system that more fully integrates the crossing arm and the bumper. To achieve this, the primary mounting brackets for the crossing arm drive system may be mounted to the bus chassis and an opening is formed in the bumper itself. The crossing arm is mounted to the drive system such that the arm projects through the opening in the bumper. Alternatively, the primary mounting brackets may be mounted to an inner surface of the bumper. A recess may be formed into an outer surface of the bumper such that the crossing arm is at least partially tucked into the recess when retracted. In one embodiment, there is no recess in the bumper. The crossing arm is contoured to follow the outer surface of the bumper. |
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DETAILED DESCRIPTION It is accordingly an object of the present invention to provide a school bus crossing or a mounting system that more fully integrates the crossing arm and the bumper.
To achieve this, the primary mounting brackets for the crossing arm drive system may be mounted to the bus chassis and an opening is formed in the bumper itself.
The arm is mounted to the drive system such that the arm projects through the opening in the bumper.
Alternatively, the primary mounting brackets may be mounted to an inner surface of the bumper.
A recess may be formed longitudinally with respect to the bumper and is configured for receiving at least a portion of the crossing arm therein.
Therefore, the arm can be mounted to the school bus with a modem, streamlined bumper in a more integral fashion.
With the arm in its retracted position, the arm itself resides in the recess formed in the bumper while the drive unit and mounting bracket remain at least partially recessed within the opening formed in the bumper.
Where there is no recess, the crossing arm is formed to conform to the outer surface of the bumper and in the retracted position the arm is at or immediately adjacent to the outer surface of the bumper.
The arm may then be extended in a conventional manner.
The present invention provides several advantages.
Initially, the crossing arm is less likely to sustain damage.
According to the prior art, by mounting the crossing arm at a position which results in the arm projecting 4 to 5 inches in front of the bumper, any collision will likely destroy the arm and its drive system.
Further, it is known that some buses are parked in a front to back relationship wherein the spacing between the buses is judged by bumping the rear bumper of the parked bus ahead.
While possibly not destroying the conventional crossing arm, damage would likely result.
The present invention offers a measure of protection for the arm and its drive assembly by the bumper itself.
Therefore, the present invention enhances reliability of this crossing arm
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