Adhesive attachment system for decorative trim strips
First Claim
1. AN ADHESIVE ATTACHMENT SYSTEM COMPRISING THREE ELEMENTS, A CARRIER DEVICE, PRIMARY WORKPIECE AND SECONDARY WORKPIECE, THE CARRIER DEVICE INCLUDING FASTENER SEEMS TO ATTACH THE SECONDARY WORKPIECE TO THE PRIMARY WORKPIECE, SAID CARRIER DEVICE HAVING A SUBSTANTIALLY PLANAR FAYING SURFACE PROVIDED WITH AT LEAST A PARTIAL COATING OF PREAPPLIED, DRY NONTACKY, THERMOPLASTIC ADHESIVE MATERIAL INCLUDING SCREENLIKE REINFORCEMENT MEANS EMBEDDED THEREIN AND PROVIDING AREAS OF INTERLOCK WITHIN THE ADHESIVE COATING AND INSURING A CONTROLLED BOND LINE BETWEEN THE FAYING SURFACE ON THE CARRIER DEVICE AND A CORRESPONDING FAYING SURFACE ON THE PRIMARY WORKPIECE, AT LEAST ONE OF THE FAYING SURFACE BEING A HAT CONDUCTING MATERIAL PROVIDING MEANS FOR CONDUCTING AND DIRECTING HEAT FROM AN OUTSIDE INDUCTION HEATING SOURCE TO ACTIVATE THE ADHESIVE MATERIAL, THEREBY BONDING THE CARRIER DEVICE TO THE PRIMARY WORKPIECE.
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Abstract
A trim attachment system utilizing thermoplastic adhesive to bond trim, clips, emblems, or the like, to a finished workpiece without utilizing apertures in the workpiece. The trim attachment may carry a layer of hot melt adhesive or the adhesive material may be produced solely by the isolated heating and reflowing of a thermoplastic paint on the workpiece.
63 Citations
4 Claims
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1. AN ADHESIVE ATTACHMENT SYSTEM COMPRISING THREE ELEMENTS, A CARRIER DEVICE, PRIMARY WORKPIECE AND SECONDARY WORKPIECE, THE CARRIER DEVICE INCLUDING FASTENER SEEMS TO ATTACH THE SECONDARY WORKPIECE TO THE PRIMARY WORKPIECE, SAID CARRIER DEVICE HAVING A SUBSTANTIALLY PLANAR FAYING SURFACE PROVIDED WITH AT LEAST A PARTIAL COATING OF PREAPPLIED, DRY NONTACKY, THERMOPLASTIC ADHESIVE MATERIAL INCLUDING SCREENLIKE REINFORCEMENT MEANS EMBEDDED THEREIN AND PROVIDING AREAS OF INTERLOCK WITHIN THE ADHESIVE COATING AND INSURING A CONTROLLED BOND LINE BETWEEN THE FAYING SURFACE ON THE CARRIER DEVICE AND A CORRESPONDING FAYING SURFACE ON THE PRIMARY WORKPIECE, AT LEAST ONE OF THE FAYING SURFACE BEING A HAT CONDUCTING MATERIAL PROVIDING MEANS FOR CONDUCTING AND DIRECTING HEAT FROM AN OUTSIDE INDUCTION HEATING SOURCE TO ACTIVATE THE ADHESIVE MATERIAL, THEREBY BONDING THE CARRIER DEVICE TO THE PRIMARY WORKPIECE.
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2. A fastening system for bonding trim to a workpiece including a carrier device, foam shock absorbing means attached to a surface of the carrier device, and a workpiece of heat conducting material, a thermoplastic finish paint layer on the workpiece, the foam shock absorbing means being adhered to the workpiece solely through the use of the thermoplastic finish layer as the heat activable adhesive bond line between the foam means and the workpiece, a predetermined area of the paint layer thus being softened by the induction of heat in the heat conducting workpiece to reflow and subsequently cool and set the predetermined area of the finish layer.
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3. An adhesive attachment system in accordance with claim 1, wherein both the carrier device and primary workpiece are formed of heat conducting material to allow the use of induction heating to activate the adhesive through both the carrier device and primary workpiece.
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4. A fastening system in accordance with claim 2, wherein an adhesive layer is provided between the shock absorbing means and the carrier device.
Specification