Cutting tool guide structure and method of cutting adhesive-backed film applied to a surface of a vehicle

Patent metadata

Field	Value
Publication number	US-10357952-B2
Application number	US-201515119890-A
Country	US
Kind code	B2
Filing date	Feb 23, 2015
Priority date	Feb 24, 2014
Publication date	Jul 23, 2019
Grant date	Jul 23, 2019

Abstract

Cutting tool guide structure ( 1 ) for the cutting of an adhesive-backed film partially applied to a surface of a vehicle. The cutting tool guide structure ( 1 ) is removably attachable to a surface of a vehicle, contains a cutting slit ( 4 ) for receiving a cutting tool ( 6 ), and is dimensioned such that the cutting tool can be moved back and forth in one direction within the cutting slit ( 4 ) to carry out a cutting action. The guide structure ( 4 ) further comprises, at opposite ends, engaging areas ( 2 ) that are shaped and configured to match opposite surface areas ( 5 ) of the vehicle such that the cutting tool guide structure ( 1 ) can be placed with its engaging areas on the surface areas of the vehicle to provide an abutting fit. Further provided are methods of applying an adhesive-backed film to the surface of a vehicle and cutting the film to fit the surface, using the cutting tool guide structure.

First claim

The invention claimed is:

1. Method of applying an adhesive-backed film to the surface of a vehicle and cutting the film, said method comprising the use of a cutting tool guide structure, wherein the cutting tool guide structure is removably attachable to a surface of the vehicle and comprises at least one cutting slit for receiving a cutting tool and being dimensioned such that the cutting tool can be moved back and forth in one direction within the cutting slit to carry out a cutting action, and wherein the guide structure is dimensioned such that it can be placed on or between opposite surfaces of the vehicle, and wherein the method comprises
(i) applying the adhesive-backed film on the surface of the vehicle wherein the film extends beyond the surface of the vehicle, wherein the areas of the film that extend beyond the surface are not to be adhered and are to be cut off;
(ii) placing the cutting tool guide structure on or between opposite surfaces of the vehicle such that the cutting slit of the cutting tool guide structure is situated underneath an area of the film that is to be cut off,
(iii) placing the unadhered section of the film, which is to be cut off, over the cutting slit of the guide structure;
(iv) inserting a cutting tool into the cutting slit and cutting off the excess film by moving the cutting tool along the cutting slit,
wherein (i) can be carried out simultaneously with (ii), prior to (ii) or after (ii).

2. The method of claim 1 wherein the cutting tool guide structure further comprises a protective cutting tool aid, which is inserted into the cutting slit such that it can be moved along the cutting slit in cutting direction, and the cutting tool aid comprises at least one aperture dimensioned to receive at least a part of the cutting tool.

3. The method according to claim 1 wherein the cutting tool guide structure further comprises at opposite ends engaging areas that are shaped and configured such that the cutting tool guide structure can be placed on or between opposite surface areas to provide an abutting fit.

4. The method according to claim 1 wherein the surface of the vehicle is the roof panel of a motor vehicle.

5. The method according to claim 4 wherein the opposite surface areas of the vehicle are selected from side panels, front window frame and rear window frame.

6. The method according to claim 5 wherein the film is an adhesive-backed paint replacement film comprising at least one adhesive layer and at least one colored layer.

7. The method according to claim 1 wherein the opposite surface areas of the vehicle are selected from side panels, front window frame and rear window frame.

8. The method according to claim 1 wherein the film is an adhesive-backed paint replacement film comprising at least one adhesive layer and at least one colored layer.

9. The method according to claim 1 wherein the colored layer of the film comprises a PVC-based or a PUR-based film.

10. The method according to claim 1 wherein the adhesive-backed film has a thickness of from 50 μm to 5 cm.

11. The method according to claim 1 wherein the cutting tool comprises a blade.

12. The method according to claim 1 wherein at least one of (i), (ii), (iii) or (iv) is carried out by a robot.

13. The method of claim 1 wherein applying of the adhesive-backed film on the surface of the vehicle comprises placing the adhesive-backed film over the surface to which it is applied, subjecting the adhesive-backed film to heat until the adhesive-backed film softens, lowering the softened film until it contacts the surface to which it is to be applied and over the cutting slit of the cutting tool guide structure.

14. The method of claim 13 wherein the adhesive-backed film is applied to the surface of the vehicle by means of an application frame comprising at least one transportations mechanism for unwinding and feeding the adhesive-backed film and at least one holding mechanism for keeping the unwound film in a stretched position over the surface of the vehicle to which it is to be applied, wherein the holding mechanism may or may not be the transportation mechanism.

15. The method according to claim 14 wherein at least one of (i), (ii), (iii) or (iv) is carried out by a robot.

16. The method of claim 15 wherein the application frame further comprises at least one infrared irradiator as a heat source to heat and soften the adhesive-backed film.

17. The method of claim 1 wherein the adhesive-backed film is applied to the surface of the vehicle by means of an application frame comprising at least one transportations mechanism for unwinding and feeding the adhesive-backed film and at least one holding mechanism for keeping the unwound film in a stretched position over the surface of the vehicle to which it is to be applied, wherein the holding mechanism may or may not be the transportation mechanism.

18. The method of claim 1 wherein the application frame further comprises at least one infrared irradiator as a heat source to heat and soften the adhesive-backed film.

Assignees

• 3M Innovative Properties Co

Inventors

• Sekanina Martin
• Marsoun Lukas
• Melezinek Rudolf
• Cerny Jiri

Classifications

• B29C63/02

  using sheet or web-like material (B29C63/26 {and B29C63/38} take precedence) · CPC title

• B62D65/024

  Positioning of sub-units or components with respect to body shell or other sub-units or components · CPC title

• B29L2031/30

  Vehicles, e.g. ships or aircraft, or body parts thereof {(vanes or blades B29L2031/08, air bags B29L2022/027)} · CPC title

• B29C2793/0036

  Slitting · CPC title

• B32B37/12 Primary

  characterised by using adhesives · CPC title