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Coextruded vehicle sill cover article
| Details |
Inventors: Gurganus, Cecil R.; Sanford, Roy C.; Atkinson, Jerry W.; Baker, Scott E.; Sander, Michael C.; Vincini, John J.;
Assignee: GenCorp Inc. (Fairlawn, OH)
Primary Examiner: Mitchell; David M.
Assistant Examiner: Robinson; Kia M.
Attorney, Agent or Firm: Rywalski; Robert F., Glanzman; Gerald H., Badger; David H.
A sill cover article for automobiles and other vehicles which has a first, relatively rigid sill cover portion and a second, relatively flexible lower door sealing portion that is manufactured as a single component and can be attached to a vehicle in a single mounting operation. The sill cover article is preferably manufactured of two materials of different durometer which are coextruded to form a single component. The sill cover article or a portion thereof may be provided with various coatings and/or additives to provide the article with desired properties. For example, the lower door sealing portion may be provided with an ice-release agent to prevent ice from forming on a surface thereof. The sill cover article of the present invention provides a reduction in assembly time, inventory requirements and overall manufacturing costs of a vehicle. |
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DETAILED DESCRIPTION The present invention provides a sill cover article for automobiles and other vehicles that includes a sill cover portion and a lower door sealing portion that is manufactured as a single component and that can be attached to a vehicle in a single mounting operation to provide both a sill cover function and a lower door sealing function.
A sill cover article according to the present invention comprises a first, relatively rigid sill cover portion and a second, relatively flexible lower door sealing portion.
Preferably, the first and second portions comprise two polymer materials, for example, two different vinyl compositions or other thermoplastic or thermoset compositions, of different durometer that are coextruded simultaneously with two or more different extruders to provide a single sill cover article having portions with different desired properties and functions.
The sill cover portion is relatively rigid (e.
g.
, 55 Shore D) and provides a substantially flat upper surface onto which a person can step when entering into or exiting from the vehicle, and may include a plurality of grooves running lengthwise therealong to provide the surface with anti-slip properties.
The lower door sealing portion is relatively flexible (e.
g.
, 65 Shore A) and extends downwardly and outwardly from the sill cover portion to provide an effective seal between the lower portion of a vehicle door and the body of the vehicle when the door is closed to prevent dust, moisture, wind, road noise and the like from coming up into the sill area of the vehicle.
The sill cover article according to the present invention replaces the separate sill cover and lower door seal currently in use in vehicles with a single component which is attached to the vehicle in a single mounting operation, thus resulting in a reduced installation time and an overall reduction in inventory requirements.
The sill cover article according to the present invention can be conveniently attached to the metal body of the vehicle utilizing adhesive tape, push pins, magnet strips or a combination thereof, or other suitable attachment structure
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Nonmetallic Processes 
