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Truck Cab To Chassis Alignment Fixture

IP.com Disclosure Number: IPCOM000125473D
Publication Date: 2005-Jun-02
Document File: 17 page(s) / 1M

Publishing Venue

The IP.com Prior Art Database

Related People

Jeffrey P. Calfa: ATTORNEY [+4]

Abstract

Poor hood fit has long been a legacy issue for many International truck and bus products. Poor cab alignment on chassis is believed to be a major root cause of poor hood fit. The addition of a cab alignment fixture to assembly lines that produce vehicles that are vulnerable to poor cab alignment can greatly reduce warranty costs, red tag costs, and increase customer satisfaction with regards to hood fit. Secondary benefits such as reduced plant labor, reduced cycle time, and improved fit in other areas of the body may also be obtained with the use of a cab alignment fixture. Today, trucks with exceptionally poor hood fit may be repaired on the assembly line or the red-tag repair lot at the plant. Many trucks with poor hood fit make it to our dealers where they repair the problem before it gets into the hands of the customers. Other trucks make it to the customers before poor hood fit is identified and the truck is brought back to the dealer for repairs. The fixture improves hood fit by properly locating the cab on the chassis, a prerequisite for good hood fit and an issue for today's products. The cab alignment fixture can be integrated directly with the cab hoist that currently lowers the cab onto the chassis on the assembly line. The invention works around problem areas of the truck instead of through them like the current process. By doing so, cab to chassis alignment is greatly improved and the hood can now be properly fit to the cab and to the bumper (poor hood to cab fit often affects hood to bumper too).

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DESCRIPTION OF THE INVENTION

1      What is the problem or issue (if any) that your invention is meant to solve?

Poor hood fit has long been a legacy issue for many International truck and bus products.  Poor cab alignment on chassis is believed to be a major root cause of poor hood fit.  The addition of a cab alignment fixture to assembly lines that produce vehicles that are vulnerable to poor cab alignment can greatly reduce warranty costs, red tag costs, and increase customer satisfaction with regards to hood fit.  Secondary benefits such as reduced plant labor, reduced cycle time, and improved fit in other areas of the body may also be obtained with the use of a cab alignment fixture. 

2      How was the problem or issue handled (addressed/solved) before your invention?  Attach sketches, drawings, photos, and/or reports where possible.

Today, trucks with exceptionally poor hood fit may be repaired on the assembly line or the red-tag repair lot at the plant.  Many trucks with poor hood fit make it to our dealers where they repair the problem before it gets into the hands of the customers.  Other trucks make it to the customers before poor hood fit is identified and the truck is brought back to the dealer for repairs.

3      How does your invention solve the problem or issue?  Attach sketches, drawings, photos, and/or reports where possible.

The fixture improves hood fit by properly locating the cab on the chassis, a prerequisite for good hood fit and an issue for today’s products.  Please refer to the attached report “Final Report - Cab Align Fixture.doc” for detailed explanation of how the fixture solves the problem.  In particular, refer to sections 4.1.

4      How does the invention tie in with an existing process or in a vehicle or in an engine?  Attach sketches where applicable.

The cab alignment fixture can be integrated directly with the cab hoist that currently lowers the cab onto the chassis on the assembly line.  Please refer to the attached report “Final Report - Cab Align Fixture.doc” for detailed explanation of how the fixture ties into the current process.  In particular, refer to sections 4.1 and 4.4.

5      What are the main components of the invention or what are the main steps of the process that are new or different?  Attach sketches, drawings, photos, and/or reports where possible.

Please refer to the attached report “Final Report - Cab Align Fixture.doc” for detailed explanation of how the fixture works.  In particular, refer to section 4.

6      Describe the novel features, operations, and functions of the invention and identify the best way of implementing your invention.  Describe all the components or steps involved.

Please refer to the attached report “Final Report - Cab Align Fixture.doc” for detailed explanation of how the fixture works.  In particular, refer to section 4.

7      Describe the advantages of the invention.

The invention works ar...